• Tuesday

 
• Wednesday

 
• Thursday

 
• Friday

 
• Saturday

Presentations marked with an asterisk (*) are eligible for Student Awards.

Symposium A (Pontalba).  Putting wildlife first: contributions to bird conservation on National Wildlife Refuges.  P. J. Heglund, K. Granillo & J. Taylor, organizers.

09:00 S001 Research on National Wildlife Refuges -- Policy, position, and pragmatism.  WAYNE J. KING, U.S. Fish & Wildl. Serv., Denver, CO.

09:15 S002 Refuge biologists: the other refuge resource. BRIAN McCAFFERY, Yukon Delta Natl. Wildl. Refuge, Bethel, AK, and KATHY GRANILLO, U.S. Fish & Wildl. Serv., Albuquerque, NM.

09:30 S003 The value of cooperative regional research studies on refuges in the Northeast.  HAL LASKOWSKI, JANITH TAYLOR, U.S. Fish & Wildl. Serv., Milton, DE, JAY HESTBECK, WILLIAM KENDALL and MICHAEL RUNGE, U.S. Geol. Surv.

10:00 S004 Using national, regional and refuge bird datasets to develop regional goals and objectives for management of refuge lands.  JENNIFER CASEY, U.S. Fish & Wildl. Serv., Errol, NH, JANITH D. TAYLOR, U.S. Fish & Wildl. Serv., Newington, NH; HAL LASKOWSKI, U.S. Fish & Wildl. Serv., Milton, DE; and JOHN R. SAUER, U.S. Geol. Surv, Patuxent Wildl. Res. Center, Laurel, MD.

10:30 S005 Capturing and handling adult American Bittern.  WAYNE L. BRININGER, Jr., U.S. Fish & Wildl. Serv., Tamarac Natl. Wildl. Refuge, Rochert, MN, GARY HUSCHLE, U.S. Fish & Wildl. Serv., Agassiz Natl. Wildl. Refuge, Middle River, MN; JOHN E. TOEPFER, Soc. Tympanuchus cupido pinnatus Ltd., Waukesha, WI; and DAVID A. AZURE, U.S. Fish & Wildl. Serv., Kulm Wetland Manage. Dist., Kulm, ND.

11:00 S006 Contributions to National shorebird and marshbird monitoring efforts on National Wildlife Refuges in USFWS Region 6.  SUZANNE  FELLOWS, DAVID S. KLUTE, STEPHANIE JONES and ADRIANNA ARAYA, U.S. Fish & Wildl. Serv., Denver, CO.

11:30 S007 Seabird trends on Alaska Maritime National Wildlife Refuge provide insight into causes of endangered Steller Sea Lion declines.  VERNON BYRD, Alaska Maritime Natl. Wildl. Refuge, Homer, AK, and THOMAS LOUGHLIN, Natl. Marine Mammal Lab., Seattle, WA.

12:00 S008 Terrestrial bird communities in riparian habitats of the Bosque del Apache National Wildlife Refuge, NM.  JOHN P. TAYLOR, U.S. Fish & Wildl. Serv., Socorro, NM.

12:30 S009 Winter grassland bird community dynamics in pine savanna habitat:  the role of fire.  MARK S. WOODREY, U.S. Fish & Wildl. Serv., Jackson, MS, and C. RAY CHANDLER, Dept. Biol., Georgia Southern Univ., Statesboro, GA.

Symposium B (LaSalle-B).  Colonial waterbird biology and conservation.  J. Kushlan, organizer.

09:00 S010 Planning for colonial waterbird conservation: lessons and opportunities.  JAMES A. KUSHLAN, U.S. Geol. Surv., Smithson. Environ. Res. Center, Edgewater, MD.

09:15 S011 A framework for developing monitoring and research priorities for colonial waterbirds in Canada.  ANTHONY J. GASTON, Canadian Wildl. Serv., Gatineau, PQ, and D. V. CHIP WESELOH, Canadian Wildl. Serv., ON.

09:30 S012 Approaches to waterbird conservation in Mesoamerica and the Caribbean.  IAN J. DAVIDSON, BirdLife Intl., Quito, Ecuador; ERIC CAREY, Soc. Conserv. & Study of Caribbean Ornithol., Nassua, Bahamas; ANGELICA ESTRADA, BirdLife Intl., Quito, Ecuador; DAVID WEGE, BirdLife Intl., Cambridge, UK; and TERESA ZUNIGA, Mesoamerican Biol. Corridor, Managua, Nicaragua.

09:45 S013 Challenges and tools for monitoring colonial waterbirds on a continental scale.  MELANIE STEINKAMP, USGS Patuxent Wildl. Res. Cen., Laurel, MD.

10:00 S014 Conservation status assessment of North American colonial waterbirds.  KATHARINE C. PARSONS and ALEXANDRA L. WILKE, Manomet Center for Conservation Sciences, Manomet, MA.

10:15 S015 Colonial waterbirds and aquaculture.  ALBERT P. GAUDÉ, Louisiana State Univ., Res. and Exten., Belle Chasse, LA; and D. TOMMY KING, USDA/WS, Nat. Wildl. Res. Cntr., MS State Univ., MS.

10:30 S016 Conservation and management of abundant colonial waterbirds: a double-edged sword.  FRANCESCA CUTHBERT and LINDA WIRES, Dept. Fish. & Wildl., Univ. Minnesota, St. Paul, MN.

10:45 S017 Ecosystem-level approach to seabird conservation the California Current.  KYRA L. MILLS, WILLIAM J. SYDEMAN, DAVID HYRENBACH and GREGG ELLIOTT, Point Reyes Bird Observatory, Stinson Beach, CA.

11:00 S018 Seabird-fishery interactions.  JULIA K. PARRISH, School Aquatic & Fish. Sci., Univ. Washington, Seattle, WA.

Symposium C (Vieux Carré - B).  Avian-microbe interactions.  Sharon Roberts, organizer.

09:00 S019 Sexually transmitted diseases in birds.  MICHAEL P. LOMBARDO and PATRICK A. THORPE, Dept. Biol., Grand Valley State Univ., Allendale, MI.

09:25 S020 Streptomyces sp.:  microecology of another feather-degrading bacterium.  EDWARD H. BURTT, Jr., KRISTEN K. WENGER, Dept. Zool., PATRICIA CELESTINO, ERIN MILLER, NGA NGUYEN and JANN M. ICHIDA, Dept. Bot., Microbiol., Ohio Wesleyan Univ., Delaware, OH.

09:50 S021 Arthropod-borne encephalitis viruses in birds.  MARY C. GARVIN, Dept. Biol., Oberlin Coll., Oberlin, OH.

10:15 S022 West Nile Virus:  an emerging avian disease.  PETER P. MARRA, Smithson. Environ. Res. Center, Edgewater, MD, and ALAN P. DUPUIS II, Arbovirus Lab., Wadsworth Center, New York State Dept. Health, Albany, NY.

10:40 S023 A historical perspective of avian diseases in Hawaii.  CHARLES VAN RIPER III, U.S. Geol. Surv., Northern Arizona Univ., Flagstaff, AZ, CARTER T. ATKINSON, USGS, Volcano Hawaii, SANDRA G. VAN RIPER, Northern Arizona Univ., Flagstaff, AZ, and WALLACE R. HANSEN, USGS, Madison, WI.

11:05 S024 Introduced pathogens and persistent bird populations in Hawaii:  biocomplexity of an evolving disease system.  BETHANY L. WOODWORTH, CARTER T. ATKINSON, DENNIS LAPOINTE, PAUL BANKO, USGS/BRD, PATRICK HART, ERIK TWEED, KELLY KOZAR, CARLENE HENNEMEN, TAMI DENETTE, CALEB SPEIGEL, DAN LEASE, AARON GREGOR, Hawaii Natl. Park, HI; SUE JARVI, KIARA BANKS, PEGGY FARIAS, Univ. Hawaii, Hilo, HI; ROBERT FLEISCHER, DINA FONSECA, LORI EGGERT, EBEN GERING, Smithsonian Inst., Washington, DC; MICHAEL SAMUEL, JORGE AHUMADA, USGS-Natl. Wildl. Health Center, Madison, WI; ANDREW DOBSON, Princeton Univ., Princeton, NJ; and DAVID DUFFY, Univ. Hawaii, Honolulu, HI.

11:30 S025 Mycoplasmal conjunctivitis in House Finches:  analysis of a new and evolving host parasite relationship.  SHARON R. ROBERTS and GEOFFREY E. HILL, Dept. Biol. Sci., Auburn Univ., Auburn, AL.

Symposium D (Pontalba).  Enriching the conceptual basis of bird monitoring schemes.  A. McCallum, T. Scott & S. L. L. Gaunt, organizers.

14:00 S026 A conservation bioacoustics manifesto.  D. ARCHIBALD McCALLUM, Applied Bioacoustics, Eugene, OR; THOMAS A. SCOTT, Ctr. Conserv. Biol., Univ. California, Riverside, CA; and SANDRA L. L. GAUNT, Borror Lab. Bioacoustics, Ohio State Univ., Columbus, OH.

14:10 S027 Avian sound recordings, distributed biodiversity databases, and ecological niche modeling:  new tools create new functionalities.  A. TOWNSEND PETERSON, Nat. Hist. Mus., Univ. Kansas, Lawrence, KS; and ADOLFO G. NAVARRO-SIGUENZA, Facultad de Ciencias, UNAM, Mexico City, Mexico.

14:30 S028 Using bird sounds to identify a species.  DONALD E. KROODSMA, Dept. Biol., Univ. Massachusetts, Amherst, MA.

14:45 S029 Perceptual and cognitive errors on aural surveys:  the importance of recording bioacoustic data.  THOMAS A. SCOTT, Ctr. Conserv. Biol., Univ. California, Riverside, CA; and LAWRENCE ROSENBLUM, Dept. Psychol., Univ. California, Riverside, CA.

15:15 S030 Vocal signals and noisy habitats:  what the bird’s ear tells us about acoustic monitoring.  BERNARD LOHR, TIMOTHY F. WRIGHT, ROBERT J. DOOLING and DOUGLAS E. GILL, Dept. Psychol., Univ. Maryland, College Park, MD.

15:45 S031 Correcting identification errors and estimating detection probabilities for aural surveys with sound recordings.  D. ARCHIBALD McCALLUM, Applied Bioacoustics, Eugene, OR; JON BART, SUSAN L. EARNST, USGS Snake River Fld. Sta., Boise, ID, KIM BEEMAN, Engineering Design, Belmont, MA, BRUCE G. PETERJOHN and KEITH L. PARDIECK, USGS Patuxent Wildl. Res. Ctr., Laurel, MD.

16:15 S032 Incorporating behavioral ecology data into vocalization-based avian research and monitoring programs. BRETT WALKER, Sch. Forestry, Univ. Montana, Missoula, MT.

16:30 S033 Conservation bioacoustics:  past, present, and future.  SANDRA L. L. GAUNT, Borror Lab. Bioacoustics, Ohio St. Univ., Columbus, OH, and JOHN W. FITZPATRICK, Lab. Ornithol., Cornell. Univ., Ithaca, NY.

Symposium E (LaSalle - B).  Linking physiology, morphology, and ecology in nectar-feeding birds.  T. J. McWhorter, J. E. Schondube & D. R. Powers, organizers.

13:30 S034 Celebrating Bill Calder's life and contributions to biology and conservation.  JORGE E. SCHONDUBE and TODD J. McWHORTER, Dept. Ecol. Evol. Biol., Univ. Ariz., Tucson, AZ.

13:45 S034b The links between energy, water and behavior in avian nectarivores.  TODD J. McWHORTER, Dept. Ecol. Evol. Biol., Univ. Ariz., Tucson, AZ; CARLOS MARTINEZ DEL RIO, Dept. Zool. & Physiol., Univ. Wyoming, Laramie, WY; and BERRY PINSHOW, Mitrani Dept. Desert Ecol. and Dept Life Sci., Ben-Gurion Univ. of the Negev, Midreshet Ben-Gurion, Israel.

14:00 S035 How do sunbirds cope with varying nectar concentrations -  energy balance and osmoregulation.  P. A. FLEMING and S. W. NICOLSON, Dept. Zool. & Entomol., Univ. Pretoria, Pretoria, South Africa.

14:15 S036 *Protein requirements in hummingbirds:  linking laboratory and field information.  M. V. LOPEZ-CALLEJA and MA. J. FERNANDEZ, Dept. de Ecologia, P. Univ. Catolica de Chile, Santiago, Chile.

14:30 S037 Torpor use by hummingbirds:  costs and benefits of nocturnal hypothermia.  DONALD R. POWERS, Biol. Dept., George Fox Univ., Newberg, OR.

14:45 S038 Effects of sugar concentration on nectar selection by birds:  coevolutionary effects of a physiological mechanism.  JORGE E. SCHONDUBE, Dept. Ecol. Evol. Biol., Univ. Arizona, Tucson, AZ; and CARLOS MARTINEZ DEL RIO, Dept. Zool. & Physiol., Univ. Wyoming, Laramie, WY.

15:00 S039 Sexual dimorphism and coevolution:  intra- and inter-island studies of a hummingbird - Heliconia system.  ETHAN J. TEMELES, Dept. Biol., Amherst Coll., Amherst, MA; and W. JOHN KRESS, Dept. Bot., Smithsonian Inst., Washington, DC.

15:15 S040 Confronting asymmetrical studies in the exploitation of mutualisms:  the impact of nectar robbers on nectar-feeding birds.  REBECCA E. IRWIN, Inst. Ecol., Univ. Georgia, Athens, GA.

15:30 S041 Of helicopters and hummingbirds: wing morphology and flight in some North American hummingbird species.  F. GARY STILES, Acad. Nat. Sci., Philadelphia, PA and Inst Cien. Nat., Univ. Nacional de Colombia, Bogotá, Colombia; DOUGLAS L. ALTSHULER, Sec. Integrative Biol., Univ. Texas, Austin, TX and Dept. Integrative Biol. Univ. California, Berkeley, CA; and ROBERT DUDLEY, Sec. Integrative Biol., Univ. Texas, Austin, TX and Smithsonian Tropical Research Inst., Balboa, Panamá.

15:45 S041b Evolutionary and ecological determinants of avian torpor: a conceptual model.  ANDREW McKECHNIE and BARRY G. LOVEGROVE, Dept. Bot. & Zool., Univ. Natal., South Africa.

Symposium F (LaSalle - C).  The use of ornithology in education.  D. J. Watt, organizer.

13:00 S042 Opening remarks.  DORIS J. WATT, Dept. Biol., Saint Mary's Coll., Notre Dame, IN.

13:20 S043 Ornithology in K-12 Education.  DAVID R. BROWN, Dept. Ecol. & Evol. Biol., Tulane Univ., New Orleans, LA.

13:40 S044 Experiential learning: teaching field ornithology to undergraduates on Appledore Island.  SARA R. MORRIS, Canisius Coll., Buffalo, NY; and JULIE C. ELLIS, Brown Univ., Providence, RI.

14:00 S045 Undergraduate research in ornithology.  EDWARD H. BURTT, Jr., Dept. Zool., Ohio Wesleyan Univ., Delaware, OH, and JANN M. ICHIDA, Dept. Bot./Microbiol., Ohio Wesleyan Univ.

14:20 S046 Things undergraduate students should know:  how to impress grad schools, and how to choose a graduate program in ornithology.  OLIVER KOMAR, Nat. Hist. Mus., Univ. Kansas, Lawrence, KS.

14:40 S047 The Institute for Field Ornithology as an educational resource.  JOHN KRICHER, Dept. Biol., Wheaton Coll., Norton, MA.

15:00 S048 Coordinating an international education program:  Migratory Bird Day.  SUSAN BONFIELD, Natl. Fish & Wildl. Found., Silverthorne, CO.

15:20 S049 Summary of Points and Conclusions

Symposium G (Vieux Carré - B).  Current issues in bird conservation:  the application of sound science to formulate policy decisions.  G. W. Winegrad, organizer.

13:25  Efforts to Reduce Avian Lead Poisoning HawkWatch International's Wildlife Lead Poisoning Reduction.  WENDY SANBORN, HawkWatch International.

13:50  San Clemente Loggerhead Shrike Recovery: Bombs and Birds.  KELLEY BROCK, U.S. Navy.

14:15  Global Warming and Birds: No Orioles in Baltimore- JEFF PRICE, American Bird Conservancy, Washington, DC.

14:40  Predator Removal from Bird Breeding Islands: Successful Conservation on 26 Islands in Mexico and Anacapa in S. California.  BERNIE TERSHY, Island Conservation Center for Ocean Health.

15:15 S050 Horseshoe crab over-harvest and shorebirds: comprehensive plans devised.  GERALD W. WINEGRAD, American Bird Conservancy, Washington, DC.

15:45 S051 Impacts of free-roaming cats on birds and other wildlife: the CATS INDOORS program.  LINDA WINTER, American Bird Conservancy, Washington, DC.

16:15 S052 Longline fishing hooks present major threat to albatrosses and other seabirds: solving the problem. MICHAEL PARR, American Bird Conservancy, Washington, DC.

16:45 S053 Pesticides and birds, a deadly mixture: fashioning solutions.  PATTI BRIGHT, American Bird Conservancy, Washington, DC.

17:15 S054 Avian mortality at communication towers: over 60,000 lit towers threaten birds.  GERALD W. WINEGRAD, American Bird Conservancy, Washington, DC.

17:45 S055 Habitat planning for birds:  the North American Bird Conservation initiative.  DAVID N. PASHLEY, DAVID N. PASHLEY, American Bird Conservancy, The Plains, VA.

18:00 - 21:00 Opening Reception, Audubon Nature Institute’s “Aquarium of the Americas”, foot of Canal St. by Canal Place
 

08:00  Continental Breakfast, Hotel Inter-Continental, Third Floor

08:30  Conference Opening, Welcoming Remarks, and Announcements

09:00 Plenary 1 (LaSalle ABC; and video feed to Pan-Am Auditorium for overflow crowd). A new view of avian life history evolution applied to parental care, clutch size, and developmental patterns across the world.  THOMAS E. MARTIN, USGS BRD, Montana Coop. Wildl. Res. Unit, Univ. Montana, Missoula, MT.

10:00  Coffee Break, Hotel Inter-Continental, Third Floor

Symposium H (Poydras).  Physiological ecology of migration:  how to fly, fast, and feed enroute.  R. L. Holberton & S. R. McWilliams, organizers.

10:30 S056 Regulation of migratory feeding and fattening by the avian brain:  a molecular approach.  TIMOTHY BOSWELL and DORIS PHILLIPS-SINGH, Roslin Inst., Roslin, Midlothian, UK.

11:00 S057 Metabolic physiology of birds during migration.  CHRISTOPHER G. GUGLIELMO, Div. Biol. Sci., Univ. Montana, Missoula, MT.

11:30 S058 Nutritional ecology of birds during migration.  SCOTT R. McWILLIAMS and BARBARA J. PIERCE, Dept. Nat. Res. Sci., Univ. Rhode Island, Kingston, RI.

12:00 S059 The role of corticosterone in migratory feeding, fattening and orientation.  REBECCA HOLBERTON and JENNIFER LONG, Dept. Biol. Sci., Univ. Maine, Orono, ME, and ROLAND SANDBERG, Dept. Anim. Ecol., Lund Univ., Lund, Sweden.

12:30 S060 The energy costs of flight and our understanding of migration ecology.  MARCEL KLAASSEN, Netherlands Inst. Ecology, Maarssen,The Netherlands, and ÅKE LINDSTRÖM, Dept. Anim. Ecology, Lund Univ., Lund, Sweden.

Session 1C (Cabildo).  Behavior.  Peter C. Frederick, chair.

10:30 1 Are dawn vocalization surveys effective for monitoring Northern Goshawk nest occupancy?  PATRICIA KENNEDY, E. Oregon Agri. Res. Center, Oregon State Univ., Union, OR, SARAH DEWEY, Bridger-Teton Natl. For., Moran, WY and ROBERT STEPHENS, Wyoming Coop. Wildl. Res. Unit, Univ. Wyoming, Laramie, WY.

10:45 2 *Polygyny and extra-pair paternity in a population of Southwestern Willow Flycatchers.  TALIMA PEARSON, Dept. Biol, Northern Arizona Univ., Flagstaff, AZ; MARY J. WHITFIELD, Southern Sierra Res. Sta., Weldon, CA; TAD C. THEIMER and PAUL KEIM, Dept. Biol., Northern Arizona Univ.

11:00 3 *Habitat-related constraints upon Wood Thrush nest attendance, food delivery rates, and fledging success:  a study using infrared miniature video cameras.  GARY E. WILLIAMS and PETRA BOHALL WOOD, USGS BRD West Virginia Coop. Fish & Wildl. Res. Unit and Div. For., West Virginia Univ., Morgantown, WV.

11:15 4 Effect of asynchronous nesting on accuracy of counts of nesting birds.  PETER C. FREDERICK, JULIE A. HEATH, Dept. Wildl. Ecol. & Conserv., Univ. Florida, Gainesville, FL, and ROB BENNETTS, USGS Florida-Caribbean Sci. Center, Gainesville, FL.

11:30 5 *Multi-scale analysis of nest predation risk of the Least Bell's Vireo.  BONNIE L. PETERSON, Dept. Biol., San Diego State Univ., San Diego, CA; BARBARA E. KUS, USGS, Western Ecol. Res. Center, San Diego, CA; and DOUGLAS H. DEUTSCHMAN, Dept. Biol., San Diego State Univ.

11:45 6 *Male parental care and paternity in a double-brooded species with brood division.  KARA A. WHITTAKER, Coll. For. Res., Univ. Washington, Seattle, WA, KEVIN J. THUSIUS, Ice Age Park & Trail Foundation, West Bend, WI, LINDA WHITTINGHAM and PETER DUNN, Dept. Biol. Sci., Univ. Wisconsin, Milwaukee, WI.

12:00 7 *Hatching success and nestling sex ratio in Black-capped and Carolina Chickadees:  do hybridizing chickadees follow Haldane's Rule?  KERRI L. CORNELL and ROBERT L. CURRY, Dept. Biol., Villanova Univ., Villanova, PA.

12:15 8 *An experimental study of parental care under varying food availability.  ANDREI L. PODOLSKY, THEODORE R. SIMONS and JAIME A. COLLAZO, North Carolina Coop. Fish & Wildl. Res. Unit, Dept. Zool., North Carolina State Univ., Raleigh, NC.

Session 1D (Pan-Am Auditorium).  Systematics.  Robert C. Faucett, chair.

10:30 9 Molecular phylogenetics of falconiform birds.  MICHAEL J. BRAUN and WALLACE E. HOLZNAGEL, Lab. Analytical Biol., Nat. Mus. Nat. Hist., Smithsonian Inst., Washington, DC.

10:45 10 Phylogeny of swallows (Hirundinidae) via cytochrome b sequences.  FREDERICK H. SHELDON, Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA; LINDA A. WHITTINGHAM, Dept. Biol. Sci., Univ. Wisconsin, Milwaukee, WI, BETH SLIKAS, Mus. Vert. Zool., Univ. California, Berkeley, CA; and DAVID W. WINKLER, Ecol. & Evol. Biol., Cornell Univ., Ithaca, NY.

11:00 11 Phylogeny of the Geositta miners (Furnariidae).  ZACHARY CHEVIRON, ANGELO CAPPARELLA, Dept. Biol. Sci. Illinois State Univ., Normal, IL, and FRANÇOIS VUILLEUMIER, Dept. Onithol., Am. Mus. Nat. Hist., New York, NY.

11:15 12 *Biogeography of the South American aridlands:  revised species limits and phylogenies help untangle a complex history.  ANA LUZ PORZECANSKI, Am. Mus. Nat. Hist. and Dept. Ecol. Evol. & Env. Biol., Columbia Univ., NY.

11:30 13 A phylogeny of the antshrikes (genus:  Thamnophilus), elucidating patterns in the evolution of voice.  ROBERT C. FAUCETT, Burke Mus., Univ. Washington, Seattle, WA, and ROBB T. BRUMFIELD, Dept. Zool., Univ. Washington, Seattle, WA.

11:45 14 Unraveling variation in the Variable Antshrike.  ROBB T. BRUMFIELD, Dept. Zool., Univ. Washington, Seattle, WA.

12:00 15 Phylogeny and biogeography of the button-quail (family Turnicidae).  R. TERRY CHESSER and JOSE TEN HAVE, Australian Natl. Wildl. Coll., CSIRO, Canberra, Australia.

12:15 16 A preliminary molecular phylogeny of Buarremon brush-finches (Emberizidae):  plumage does not reflect relationships and complicates biogeographic understanding.  CARLOS DANIEL CADENA, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO.

Session 1E (Pontalba).  Breeding Biology.  Stephen T. Emlen, chair.

10:30 17 Nest building honestly advertises nestling provisioning in male Buff-breasted Wrens.  SHARON GILL and BRIDGET J.STUTCHBURY, Dept. Biol., York Univ., Toronto, ON.

10:45 18 Plumage differences in House Wrens indicate a possible trait under sexual selection.  ISABELLA B. R. SCHEIBER, Dept. Biol. Sci., Univ. at Albany, Albany, NY.

11:00 19 *Weakness of pair bonds indicates social promiscuity in wild Muscovy Ducks.  SARAH M. STAI, Dept. Biol., Univ. Miami, Coral Gables, FL.

11:15 20 Life in a male harem:  costs and benefits of polyandrous associations in Wattled Jacanas.  STEPHEN T. EMLEN, PETER H. WREGE and NATALIE J. DEMONG, Dept. Neurobiol. & Behav., Cornell Univ., Ithaca, NY.

11:30 21 *The role of plumage coloration in flocking behavior of wading birds.  M. CLAY GREEN and PAUL L. LEBERG. Dept. Biol., Univ. Louisiana, Lafayette, LA.

11:45 22 Why are drab male House Finches socially dominant to bright males?  GEOFFREY E. HILL, Dept. Biol. Sci., Auburn Univ., AL; KEVIN J. McGRAW, Dept. Neurobiol. & Behavior, Cornell Univ., Ithaca, NY; ANDREW STOEHR, Dept. Biol., Univ. California- Riverside, CA; and RENEE DUCKWORTH, Biol. Dept., Duke Univ., Durham, NC.

12:00 23 *Black face patterns necessary for pairing in Golden-winged Warblers:  a link to their displacement by Blue-winged Warblers through introgression.  ELLEN R. LEICHTY, Dept. Biol. Sci., North Dakota State Univ., Fargo, ND.

12:15 24 Off territory forays and extra-pair mating success of male Acadian Flycatchers.  BONNIE E. WOOLFENDEN, BRIDGET J. M. STUTCHBURY, Dept. Biol., York Univ., Toronto, ON, and EUGENE, S. MORTON, Smithsonian Inst., Front Royal, VA.

Session 1G (LaSalle - C).  Migration.  Jeff P. Smith, chair.

10:30 25 *Solving the mystery of the unbanded Peregrine Falcons - a stable isotope exploration of northern Canada.  J. M. DUXBURY, Dept. Renew. Res., Univ. Alberta, Edmonton, AB; G. L. HOLROYD, Canadian Wildl. Serv., Environment Canada, Edmonton, AB, and K. MUEHLENBACHS, Dept. Earth & Atmospheric Sci., Univ. Alberta, Edmonton, AB.

10:45 26 *The migration of the Hook-billed Kite.  ERNESTO RUELAS INZUNZA, Pronatura Veracruz, Mexico and Univ. Missouri, Columbia, MO; LAURIE J. GOODRICH, Hawk Mountain Sanctuary, Kempton, PA; STEPHEN W. HOFFMAN, HawkWatch International, Salt Lake City, UT, and JORGE MONTEJO DIAZ, Pronatura Veracruz.

11:00 27 Migration routes, timing, and territory fidelity of Red-tailed Hawks in western North America as determined by satellite telemetry.  JEFF P. SMITH and MARK S. VEKASY, HawkWatch International, Salt Lake City, UT.

11:15 28 Nocturnal bird migration at the Stateline and Vansycle wind-energy projects in Oregon.  TODD MABEE and BRIAN A. COOPER, ABR Inc., Forest Grove, OR.

11:30 29 Mexico to Alaska:  spring migration of Dunlin and dowitchers.  MARY BISHOP, Prince William Sound Sci. Center, Cordova, AK; NILS WARNOCK, Point Reyes Bird Observ., Stinson, CA; and JOHN TAKEKAWA, Biol. Res. Div., USGS, Vallejo, CA.

11:45 30 Landscape movements of Lilac-crowned Parrots and Citreoline Trogons in tropical dry forest.  KATHERINE RENTON, ALEJANDRO SALINAS-MELGOZA and JORGE H. VEGA-RIVERA, Inst. Biol., UNAM, Mexico.

12:00 31 Stable isotope signature of philopatry and dispersal in a migratory songbird.  GARY GRAVES, Natl. Mus. Nat. Hist., Smithsonian Inst., Washington, DC, CHRISTOPHER ROMANEK and ALEJANDRO RODRIGUEZ NAVARRO, Savannah River Ecol. Lab., Aiken, SC.

12:15 32 *Using combined stable-hydrogen isotope and band encounter analyses to assess migration patterns of immature Sharp-shinned Hawks.  RUTH SMITH, Dept. Biol., Univ. New Mexico, Albuquerque, NM; TIMOTHY MEEHAN, HawkWatch International, Salt Lake City, UT; and BLAIR WOLF, Dept. Biol., Univ. New Mexico.

Session 1H (Vieux Carré - AB).  Conservation. Joan L. Morrison, chair.

10:30 33 The Swallow-tailed Kite in Texas:  a Citizen Science survey and monitoring project.  CLIFFORD E. SHACKELFORD, Texas Parks & Wildl., Austin, TX; JOSEPH F. HAMRICK, Temple-Inland Forest, Diboll, TX; RAYMOND E. BROWN, U.S. Fish & Wildl. Serv., Austin, TX; DAWN K. CARRIE, U.S. For. Serv., New Waverly, TX; N. ROSS CARRIE, Raven Environ. Serv., Inc., Huntsville, TX; and DON R. DIETZ, Temple-Inland Forest, Diboll, TX.

10:45 34 *Conspecific attraction and the conservation of endangered birds.  SCOTT R. SCHLOSSBERG, Prog. Ecol. & Evol. Biol, Univ. Illinois, Champaign, IL, and MICHAEL P. WARD, Illinois Nat. Hist. Surv., Champaign, IL.

11:00 35 *Are conservation priority areas artifacts of sampling?  LILIANA M. DAVALOS and SUSHMA REDDY, Am. Mus. Nat. Hist. and Dept. Ecol., Evol. & Env. Biol., Columbia Univ., New York, NY.

11:15 36 *Conservation needs and habitat use of post-fledgling Barn Owls in Arkansas.  PAUL RADLEY and JIM BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR.

11:30 37 Rate of species loss from Amazonian forest fragments.  GONÇALO FERRAZ, GARETH J. RUSSELL, CERC, Columbia Univ., New York, NY, PHILIP C. STOUFFER, Dept. Biol. Sci., Southeastern Louisiana Univ., Hammond, LA, RICHARD O. BIERREGAARD, Dept. Biology, Univ. North Carolina, Charlotte, NC, STUART L. PIMM, CERC, Columbia Univ., and THOMAS E. LOVEJOY, Smithsonian Inst., Washington, DC.

11:45 38 Local extinctions in Amazonian forest fragments: continued species loss through 20 years post-isolation.  PHILIP STOUFFER, Dept. Biol. Sci., Southeastern Louisiana Univ., Hammond, LA, and CHERYL STRONG, San Francisco Bay Bird Obs., Alviso, CA.

12:00 39 Conservation biology of the Buff-breasted Sandpiper in South America.  VERENA A. GILL, RICHARD B. LANCTOT, USGS, Alaska Sci. Center, Anchorage, AK; DANIEL E. BLANCO, Wetlands Intl., Buenos Aires, Argentina; and RAFAEL A. DIAS, Museu de História Natural, Univ. Católica de Pelotas, Pelotas, RS, Brazil.

12:15 40 The Greater Prairie-Chicken in western Canada:  invasion, occupation, extirpation.  C. STUART HOUSTON, Univ. Saskatchewan, Saskatoon, SK.

12:30  Lunch Break; for options see FOOD section, p. 6 above

Symposium I (Vieux Carré - A).  Island treasures:  avian research and conservation in the Caribbean.  R. Gnam, organizer.

14:00 S061 Island treasures:  avian research and conservation in the Caribbean.  ROSEMARIE GNAM, Center Biodiv. & Conserv., Am. Mus. Nat. Hist., New York, NY.

14:15 S062 Current status of Cuban threatened birds:  case studies of conservation programs.  MARTIN ACOSTA, LOURDES MUGICA, ORRLANDO TORRES, DENNIS DENIS, ARIAM JIMÉNEZ and ANTONIO RODRIGUEZ, Fac. Biol., Univ. de La Habana, Cuba.

14:30 S063 Avian research, monitoring and conservation in the Dominican Republic. KATE WALLACE and ELADIO FERNANDEZ, Sociedad Ornitologica Hispaniola, Santo Domingo, Dominican Republic.

14:45 S064 BirdLife Jamaica - influencing conservation in Jamaica.  CATHERINE LEVY, BirdLife Jamaica and SUZANNE DAVIS, Nat. Hist. Div., Inst. Jamaica.

15:00 S065 Ornithological research and conservation efforts in Puerto Rico. ADRIANNE G. TOSSAS, Puerto Rican Ornithol.Soc.

15:15 S066 The West Indian Whistling-Duck and Wetlands Conservation Project:  a model for species and wetlands conservation and education.  LISA G. SORENSON, Dept. Biol., Boston Univ., Boston, MA, and PATRICIA E. BRADLEY, Grand Cayman, Cayman Islands, BWI.

15:30  Refreshment Break, Hotel Inter-Continental, Third Floor

16:00 S067 A research and training program for conservation of wintering Kirtland's Warbler and associated species in the Bahamas.  ERIC CAREY, Dept. Agr., Government of The Bahamas, Botanical Gardens, Nassau, Bahamas, JOSEPH M. WUNDERLE, Jr., IITF, U.S. Forest Service, and DAVID N. EWERT, Great Lakes Program, The Nature Conservancy.

16:15 S068 The status of resident and migrant bird communities in Cuban ecosystems.  HIRAM GONZALEZ ALONSO, ALEJANDRO LLANES SOSA, BARBARA SANCHEZ ORIA, DAYSI RODRIGUEZ BATISTA, ENEIDER PÉREZ MENA, PEDRO BLANCO RODRIGUEZ and RAMONA OVIEDO PRIETO, Instituto de Ecología y Sistemática, Ministerio de Ciencia, Tecnología y Medio Ambiente de Cuba, La Habana, Cuba.

16:30 S069 Status and conservation of seabirds in the Caribbean.  ANN M. HAYNES-SUTTON, Marshall's Pen, Mandeville, Jamaica, ADRIAN DEL NEVO, Applied Ecological Solutions Inc., Rossmoor, CA, JORGE SALIVA, U.S. Fish & Wildl. Serv., Puerto Rico, MARTHA WALSH-McGEHEE, Saba, and DAVID WEGE, BirdLife International, Cambridge, UK.

16:45 S070 Status and conservation of the family Psittacidae in the West Indies.  JAMES W. WILEY, Maryland Coop. Fish & Wildl. Res. Unit, Princess Anne, MD; ROSEMARIE S. GNAM, Center for Biodiversity & Conservation, NY; SUSAN KOENIG, Jamaica; C. LYNDON JOHN, St. Lucia; XIOMARA GÍLVEZ, Empresa Nacional Protección de Flora y Fauna, Cuba; PATRICIA E. BRADLEY, Cayman Islands; THOMAS WHITE, U.S. Fish & Wildl. Serv., Puerto Rico; and MICHAEL ZAMORE, Dominica.

17:00 S071 The role of the non-professional in Caribbean ornithology. CAROLYN WARDLE, Coordinator of the Ornithology Group of the Bahamas National Trust, Bahamas; and KATE WALLACE, Dominican Republic.

17:15 S072 The challenge for future research and conservation efforts in the Caribbean.  HERBERT A. RAFFAELE, U.S. Fish & Wildl.Serv. Arlington, VA.

Session 2C (Cabildo).  Breeding Biology. Michael Webster, chair.

14:00 41 *Parentage in Wild Turkey nests and its implications for kin selection.  ALAN H. KRAKAUER, Mus. Vert. Zool. and Dept. Integrative Biol., Univ. Cal., Berkeley, CA.

14:15 42 *Clutch size evolution in a Neotropical bird:  experimental test of nest predation and individual optimization hypotheses.  JENNIFER NESBITT STYRSKY, SCOTT K. ROBINSON, Dept. Animal Biol., Univ. Illinois, Urbana IL; and JEFFREY D. BRAWN, Illinois Nat. Hist. Surv., Champaign, IL.

14:30 43 *Immunocompetence, parentage and MHC in the Red-billed Gull breeding colony, Kaikoura Peninsula, New Zealand.  NICOLA L. CHONG, ANDREW D. GIVEN, Dept. Zool., Univ. Toronto, and Royal Ontario Mus., Toronto, ON, JAMES A. MILLS, Corning, NY, and ALLAN J. BAKER, Royal Ontario Mus., Toronto, ON.

14:45 44 *Are there costs to coloniality?  nesting density and breeding success in Caspian Terns.  MICHELLE ANTOLOS, DANIEL D. ROBY, SCOTT K. ANDERSON and DONALD E. LYONS, USGS-Oregon Coop. Fish & Wildl. Res. Unit, Dept. Fish. & Wildl., Oregon State Univ., Corvallis, OR.

15:00 45 *Incubation period and immunocompetence:  a comparative study.  MARIA G. PALACIOS and THOMAS E. MARTIN, Div. Biol. Sci., Univ. Montana, Missoula, MT.

15:15 46 *Sibling competition and the duration of incubation.  JOHN D. LLOYD, Wildl. Biol. Prog., Univ. Montana, Missoula, MT.

Session 2D (Pan-Am Auditorium).  Systematics.  John M. Bates, chair.

14:00 47 *Genetic diversity and population structure in Red Knots:  an avian cheetah on a global scale?  DEBORAH M. BUEHLER and ALLAN J. BAKER, Royal Ontario Mus. and Dept. Zool., Univ. Toronto, Toronto, ON.

14:15 48 *Genetic status of Resplendent Quetzal.  SOFÍA SOLÓRZANO, I. Ecología, Universidad Nacional Autónoma de México, Mexico, ALLAN J. BAKER, Royal Ontario Mus., Toronto, ON, and KEN OYAMA, I. Ecología, Universidad Nacional Autónoma de México, Mexico.

14:30 49 *Population genetics of Greater Prairie Chickens.  JEFF A. JOHNSON and PETER O. DUNN, Dept. Biol., Univ. Wisconsin-Milwaukee, Milwaukee, WI.

14:45 50 Systematics and biogeography of the genus Turdus.  GARY VOELKER, Barrick Mus., Univ. Nevada Las Vegas, Las Vegas, NV, and SIEVERT ROHWER, Burke Mus., Univ. Washington, Seattle, WA.

15:00 51 Genetic and phenotypic variation among populations of Galapagos Hawks.  JENNIFER L. BOLLMER, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO; TANIA SANCHEZ, Dept. de Biol., Pontificia Universidad Católica del Ecuador (PUCE), Quito, Ecuador; MICHELLE DONAGHY CANNON, Dept. Biol. Sci., Arkansas State Univ., State University, AR; DIDIER SANCHEZ, PUCE; BRIAN CANNON, JAMES C. BEDNARZ, Arkansas State Univ.; TJITTE DE VRIES, PUCE; M. SUSANA STRUVE; and PATRICIA G. PARKER, Dept. Biol., Univ. Missouri - St. Louis.
15:15 52 Implications of genetic diversity in Amazonian birds:  is Amazonia really a museum and not a species pump?  JOHN M. BATES and SHANNON J. HACKETT, Field Mus., Chicago, IL.

Session 2E (Pontalba).  Behavior.  Russell P. Balda, chair.

14:00 53 Learning to be a Pinyon Jay:  how young jays relate to their namesake.  RUSSELL P. BALDA and AIMEE DUNLAP, Dept. Biol. Sci., Northern Arizona Univ., Flagstaff AZ.

14:15 54 Campgrounds enable American Crows to colonize remote native forests: why a landscape view is needed to address a local issue.  ERIK A. NEATHERLIN, Coll. For. Res., Univ, Washington, Seattle, WA.

14:30 55 *Parasites, plumage, and sexual selection in Satin Bowerbirds.  STÉPHANIE M. DOUCET and ROBERT MONTGOMERIE, Dept. Biol., Queen's Univ., Kingston, ON.

14:45 56 The influence of male age and attractiveness on mate guarding behavior in the House Finch.  MICHELLE L. BECK, ANNE A. DERVAN and GEOFFREY E. HILL, Dept. Biol. Sci., Auburn Univ., Auburn, AL.

15:00 57 American Crow society:  mind boggling!  CAROLEE CAFFREY, Zool. Dept., Oklahoma State Univ., Stillwater, OK.

15:15 58 *Cavity nest site selection by Barrow's Goldeneye and Bufflehead in British Columbia.  MATTHEW R. EVANS, Centre Wildl. Ecol., Dept. Biol. Sci., Simon Fraser Univ., Burnaby, BC.

Session 2G (LaSalle - C).  Migration. Carol J. Beadmore, chair.

14:00 59 Stopover ecology of spring migrating landbirds in Michigan's eastern Upper Peninsula.  ROBERT J. SMITH and FRANK R. MOORE, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

14:15 60 Fall stopover habitats of landbirds:  use of mature edge-dominated and successional forests.  PAUL G. RODEWALD and MARGARET C. BRITTINGHAM, Ecol. Prog., Pennsylvania State Univ., University Park, PA.

14:30 61 *Habitat use of Gray Catbirds during fall migration at a stopover site in Alabama.  JEFFREY W. FARRINGTON and FRANK R. MOORE, Dept. Biol. Sci, Univ. Southern Mississippi, Hattiesburg, MS.

14:45 62 *Immunological condition of landbird migrants in relation to their energetic condition during spring stopover.  JEN C. OWEN and FRANK R. MOORE, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

15:00 63 Fat deposition strategies among high-latitude passerine migrants.  ANNA-MARIE BENSON, Alaska Bird Observatory, Fairbanks, AK, and KEVIN WINKER, Univ. Alaska Mus., Fairbanks, AK.

15:15 64 Habitat use by migrating songbirds during stopovers in New Jersey:  a radar/GIS study.  DAVID S. MIZRAHI and VINCENT J. ELIA, New Jersey Audubon Soc./Cape May Bird Observ., Cape May Court House, NJ.

Session 2H (Vieux Carré - AB).  Conservation.  David W. Steadman, chair.

14:00 65 A tool for assigning relative conservation values to habitats on local and regional scales.  TOM WILL, U.S. Fish & Wildl. Serv., Fort Snelling, MN; CARL KORSCHGEN, Columbia Environ. Research Center, USGS, Columbia, MO; TIM FOX and MELINDA KNUTSON, Upper Midwest Environ. Sci. Center, USGS, La Crosse, WI.

14:15 66 Is my place better than yours?  issues in setting geographic conservation priorities.  JEFFREY V. WELLS, Natl. Audubon Soc., Ithaca, NY; KENNETH V. ROSENBERG, Cornell Lab. Ornithol., Ithaca, NY, and TERRELL D. RICH, US Fish & Wildl. Serv., Boise, ID.

14:30 67 "Instantaneous" vs. protracted extinction events in island birds.  DAVID W. STEADMAN, Florida Mus. Nat. Hist., Univ. Florida, Gainesville, FL.

14:45 68 The ecological "fingerprint" of climatic change:  a meta-analysis.  TERRY L. ROOT, Center Environ. Sci. & Policy, Stanford Univ., Stanford, CA; JEFF T. PRICE, American Bird Conservancy, Boulder, CO; KIMBERLY R. HALL, School Nat. Res. & Environ., Univ. Michigan, Ann Arbor, MI; CYNTHIA ROSENZWEIG, NASA Goddard Inst. Space Studies, New York, NY; and STEPHEN H. SCHNEIDER, Dept. Biol. Sci., Stanford Univ., Stanford, CA.

15:00 69 Important Bird Areas:  a tool for bird conservation.  DANIEL K. NIVEN, JEFFREY V. WELLS and JOHN P. CECIL, Audubon Sci. Office, Ivyland, PA.

15:15 70 Shorebird conservation in North America:  which species are we protecting?  LAURA X. PAYNE, Dept. Wildl. Ecol., Univ. Wisconsin, Madison, WI; BRIAN A. HARRINGTON, Manomet Center for Conserv. Sci., Manomet, MA; STANLEY A. TEMPLE, Dept. Wildl. Ecol., Univ. Wisconsin; and JULIA K. PARRISH, Sch. Aquatic & Fish. Sci., Univ. Washington, Seattle, WA.

15:30  Refreshment Break, Hotel Inter-Continental Third Floor

Session 3C (Cabildo).  Ecology.  Eileen M. Kirsch, chair.

16:00 71 *Importance of mixed forest for forest birds in Ontario.  CAROLINE GIRARD, For. & Geomatics, Centre de recherche en biologie forestière, Univ. Laval, Québec, PQ, CHARLES M. FRANCIS, Bird Studies Canada, Port Rowan, ON, MARCEL DARVEAU and ANDRÉ DESROCHERS, For. & Geomatics, Univ. Laval.

16:15 72 Avifaunal community changes in a lowland tropical rainforest:  20-year changes at the La Selva Biological Station, Costa Rica.  BRYAN J. SIGEL, THOMAS W. SHERRY, EE Biol. Dept., Tulane Univ., New Orleans, LA, and BRUCE E. YOUNG, NatureServe, Arlington, VA.

16:30 73 Breeding birds in riparian wet meadows dominated by reed canary grass or native plants in the upper Midwest.  EILEEN M. KIRSCH, U.S. Geol. Surv., Upper Midwest Environ. Sci. Center, La Crosse, WI.

16:45 74 Veery song perch selection between islands.  C. AUDRA BASSETT and DAVID J. FLASPOHLER, School For. Res. & Environ., Michigan Tech. Univ., Houghton, MI.

17:00 75 *Trends in Marbled Murrelet inland activity in old-growth forests:  Olympic Experimental State Forest, Washington.  SCOTT P. HORTON, Coll. Forest Res., Univ. Washington, Seattle, WA.

17:15 76 *One if by land, two if by stream:  using genetic markers to assess inter-watershed dispersal in American Dippers.  KATHERINE M. STRICKLER, Dept. Fish & Wildl., Univ. Idaho, Moscow, ID; and KIRK LOHMAN, Upper Midwest Env. Sci. Ctr., USGS, LaCrosse, WI.

Session 3D (Pan-Am Auditorium).  Systematics.  Jason A. Mobley, chair.

16:00 77 Phylogenetic relationship of the Spot-winged Falconet in the family Falconidae using molecular data.  MARC J. BECHARD, Dept. Biol., Boise State Univ., Boise, ID, JOSE H. SARASOLA, Univ. Nacional de La Pampa, Santa Rosa, Argentina, and ANDREAS J. HELBIG, Univ. Greifswald, Kloster, Germany.

16:15 78 Comparative phylogeography of Motacilla alba and Carpodacus erythrinus.  ALEXANDRA PAVLOVA, ROBERT M. ZINK, Bell Mus. and Dept. Ecol., Evol., & Behav., Univ. Minnesota, St.Paul, MN; and SIEVERT A. ROHWER, Burke Mus. and Dept. Zool., Univ. Washington, Seattle, WA.

16:30 79 Explaining rapid radiations:  a test using the birds of paradise.  JOEL CRACRAFT and JULIE A. FEINSTEIN, Am. Mus. Nat. Hist., New York, NY.

16:45 80 Phylogenetic species of the Fox Sparrow.  ANN E. KESSEN and ROBERT M. ZINK, Bell Mus., Univ. Minnesota, St. Paul, MN.

17:00 81 *Molecular phylogenetics and plumage convergence in the Ramphastos toucans.  JASON D. WECKSTEIN, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

17:15 82 Evolution of microsatellites in the adaptive radiation of Hawaiian honeycreepers.  LORI EGGERT, JON BEADELL, ANDREW McCLUNG and ROBERT FLEISCHER, Dept. Syst. Biol., Natl. Mus. Nat. Hist., Smithsonian Inst., Washington, DC.

Session 3E (Pontalba).  Breeding Biology.  Brent Burt, chair.

16:00 83 Does nest predation threat contribute to colonial nesting in Blue-tailed Bee-eaters?  D. BRENT BURT, PRISCILLA F. COULTER, Dept. Biol., Stephen F. Austin State Univ., Nacogdoches, TX, HSIAO-WEI YUAN and SHENG-FENG SHEN, Dept. For., Natl. Taiwan Univ., Taipei, Taiwan.

16:15 84 Forest boundary crossing by mobbing understory birds:  effects of cover and heterospecific facilitation.  KATHRYN E. SIEVING, KIMBERLY L. MAUTE and THOMAS CONTRERAS, Dept. Wildl. Ecol. & Conser., Univ. Florida, Gainesville, FL.

16:30 85 Behavior of breeding American Avocets:  diurnal or nocturnal?  MATTHEW JOHNSON, JON P. BECKMANN and LEWIS W. ORING, Dept. Environ. & Res. Sci., Univ. Nevada, Reno, NV.

16:45 86 Effects of prey biomass on the mating strategy of Bicknell's Thrush.  ALLAN M. STRONG, School Nat. Res., Univ. Vermont, Burlington, VT; CHRIS C. RIMMER and KENT P. McFARLAND, Vermont Inst. Nat. Sci., Woodstock, VT.

17:00 87 Do more aggressive parents produce larger goslings?  MARK P. HERZOG and JAMES S. SEDINGER, Dept. Environ. & Res. Sci., Univ. Nevada, Reno, NV.

17:15 88 The occurrence and evolution of cooperative breeding among the diurnal raptors.  REBECCA T. KIMBALL, Dept. Zool., Univ. Florida, Gainesville, FL, PATRICIA G. PARKER, Dept. Biol., Univ. Missouri - St. Louis, St. Louis, MO, and JAMES C. BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR.

Session 3G (LaSalle - C).  Physiology.  Noah T. Owen-Ashley, chair.

16:00 89 *Differential immune defense in monogamous and polygynandrous longspurs.  NOAH T. OWEN-ASHLEY, Dept. Zool., Univ. Washington, WA, DENNIS HASSELQUIST, Dept. Animal Ecol., Lund Univ., Lund, Sweden, and JOHN C. WINGFIELD, Dept. Zool., Univ. Washington.

16:15 90 *Changing patterns of corticosterone secretion play a functional role in migratory fattening.  JENNIFER A. LONG, REBECCA L. HOLBERTON and DEBORAH E. PERKINS, Dept. Biol., Univ. Maine, Orono, ME.

16:30 91 *Stable isotopes in breath and blood indicate nutrient incorporation and utilization in migratory songbirds.  DAVID W. PODLESAK, SCOTT R. McWILLIAMS, Nat. Res. Sci., Univ. Rhode Island, Kingston, RI; and KENT A. HATCH, Brigham Young Univ., Provo, UT.
 

Session 3H (Vieux Carré - AB).  Morphology.  Fritz Hertel, chair.

16:00 92 *Quantifying an enigma:  evaluating the efficacy of survey methods for Yellow-billed Cuckoos.  HOPE D. WOODWARD, Dept. Nat. Sci., Western New Mexico Univ., Silver City, NM; SCOTT H. STOLESON, JEFF KELLY and DEBORAH FINCH, USDA Rocky Mt. Res. Sta., Albuquerque, NM.

16:15 93 *Associations of morphology and phylogeny for insectivory in hummingbirds.  GREGOR YANEGA and MARGARET A. RUBEGA, Dept. Ecol. Evol. Biol., Univ. Connecticut, Storrs, CT.

16:30 94 The automated balance system in birds.  FRITZ HERTEL, California State Univ., Northridge, CA; and KENNETH E. CAMPBELL, Nat. Hist. Mus. Los Angeles Co., Los Angeles, CA.

17:00 -18:00  Special Lecture by James Ingold, “History of Louisiana Ornithology” (Vieux Carré AB)

18:00 - 21:00 Poster Session I (LaSalle - A).  Wine and cheese light hors d’oevres

419 Microsatellite analysis of alternative reproductive strategies in a predominantly monogamous columbiform:  Mourning Doves.  LETITIA M. REICHART, School Biol. Sci., Washington State Univ., Pullman, WA; DAWN A. SHERRY, Dept. Fish. & Wildl., Texas A & M Univ., College Station, TX; ANTHONY J. NASTASE, Dept. Biol., Indiana Univ. PA, Indiana, PA; and DAVID F. WESTNEAT, School Biol. Sci., Univ. Kentucky, Lexington, KY.

420 The use of color infrared photography as an indicator of primary productivity and invertebrate abundance at migration stopover sites of the Western Sandpiper.  ANDREA C. POMEROY, Centre Wildl. Ecol., Dept. Biol., Simon Fraser Univ., Vancouver, BC, and ROB W. BUTLER, Centre Wildl. Ecol. and Canadian Wildl. Serv., Delta, BC.

421 Field-testing cognitive differences between migratory and non-migratory Dark-eyed Juncos:  a homing experiment.  JEFFREY T. KEISER and DANIEL A. CRISTOL, Dept. Biol., Coll. William & Mary, Williamsburg, VA.

422 Landscape patterns and wintering grassland birds in the Concho Valley, Texas.  DAWN R. MAGNESS, SALLIE J. HEJL and R. NEAL WILKINS, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX.

423 Strategies for conservation of winter habitat of Golden-cheeked Warbler in highlands of Chiapas, Mexico.  EFRAIN CASTILLEJOS-CASTELLANOS, Pronatura Chiapas, Chiapas, México.

424 Breeding outcome of Common Yellowthroat within a river corridor under recreational pressure.  CHRISTOPHER D. ANDERSON, Kansas Coop. Fish & Wildl. Res. Unit, Kansas State Univ., Manhattan, KS; C. DUSTIN BECKER, Dept. Hort. For. & Rec. Res., Kansas State Univ; PHILIP S. GIPSON, Kansas Coop. Fish & Wildl. Res. Unit, Kansas State Univ.; BRETT K. SANDERCOCK and DAVID A. RINTOUL, Div. Biol., Kansas State Univ.

425 Swainson's Thrush survival:  at the nest, post-fledging, annual juvenile and adult.  JENNIFER D. WHITE, Div. Biol. Sci., Univ. Missouri, Columbia, MO, THOMAS GARDALI, DANIEL C. BARTON, Point Reyes Bird Observ., Stinson Beach, CA, and JOHN FAABORG, Div. Biol. Sci., Univ. Missouri.

426 Hatching success and nest-site characteristics of Salton Sea Snowy Plovers.  KATHY C. MOLINA, Nat. Hist. Mus. Los Angeles Co., Los Angeles, CA.

427 The demise of vultures in southern Asia:  research and conservation recommendations for Africa.  MARK D. ANDERSON, Dept. Agric., Land Reform, Env. & Cons., Kimberley, South Africa; PETER J. MUNDY, Famona, Bulawayo, Zimbabwe; and MUNIR A. VIRANI, The Peregrine Fund, Nairobi, Kenya.

428 Observer effort is not equal:  spatial and temporal variation in Christmas Bird Count effort corrections.  ANDREW FARNSWORTH, Natl. Audubon Soc., New York, NY, and WESLEY M. HOCHACHKA, Lab. Ornithol., Cornell Univ., Ithaca, NY.

429 Holding time effects, due to banding, on migrant birds during fall migration.  JEFFREY W. FARRINGTON, Dept. Biol. Sci., Univ. Southern Miss., Hattiesburg, MS.

430 Patterns in Northern Cardinal plasma cholinesterase enzyme activity and relationship to condition index and fluctuating asymmetry.  JONATHAN D. MAUL and JERRY L. FARRIS, Environ. Sci. Prog., Arkansas State Univ., State University, AR.

431 Dispersal patterns and habitat use of Ferruginous Pygmy-Owls in southern Arizona.  RENEE L. WILCOX and MICHAEL F. INGRALDI, Research Branch, Arizona Game & Fish Dept., Phoenix, AZ.

432 Studies of long distance movements with satellite telemetry.  KIRK BATES, MIKE YATES, Raptor Res. Center, Boise State Univ., Boise, ID, and MARK FULLER, U.S. Geol. Surv., For. & Range. Ecosys. Sci. Center, Boise, ID.

433 The effects of the color of light on the magnetic orientation of the Bobolink.  ROBERT C. BEASON, Dept. Biol., Univ. Louisiana, Monroe, LA.

434 Detecting bird populations from an unmanned aerial vehicle.  LEONARD G. PEARLSTINE, Ft. Lauderdale Res. & Edu. Center, Univ. Florida, Davie, FL, H. FRANKLIN PERCIVAL, Florida Coop. Fish & Wildl. Res. Unit, Univ. Florida, Gainesville, FL; AMR ABD-ELRAHMAN, Dept. Civil & Environ. Eng., Univ. Central Florida, Orlando, FL; PETER G. IFJU, Dept. Aerospace Eng., Mech. & Eng. Sci., Univ. Florida, Gainesville, FL, and BON A. DEWITT, Dept. Civil Eng., Univ. Florida, Gainesville, FL.

435 Carotenoid plumage reflectance and reproductive success of American Redstarts.  BRITTNEY M. HEMBA, JEN C. OWEN and ROBERT J. SMITH, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

436 Raptors drowning in farm reservoirs in southern Africa.  MARK D. ANDERSON, Dept. Agric., Land Reform, Env. & Cons., Kimberley, South Africa; ABRIE W. A. MARITZ, Raptor Conserv. Group, Olifantshoek, South Africa; and ENRICO OOSTHUYSEN, Dept. Agric., Land Reform, Env. & Cons., Springbok, South Africa.

437 Studying bird migration with thermal imaging (TI) and fixed-beam vertically pointing radar (VPR).  SIDNEY A. GAUTHREAUX, Jr., CARROLL G. BELSER and JENNY E. MICHI, Dept. Biol. Sci., Clemson Univ., Clemson, SC.

438 Patterns of pre-dawn singing in Buff-breasted Flycatchers.  M. ROSS LEIN, Dept. Biol. Sci., Univ. Calgary, Calgary, AB; and VALERIE A. HAINES, Dept. Sociol., Univ. Calgary.

439 Habitat relationships among wintering birds in urban parks.  ZACHARY A. KAHN and JOAN L. MORRISON, Dept. Biol. Trinity Coll., Hartford, CT.

440 Bird and mammal distribution maps:  a new resource for Neotropical zoologists.  BRUCE E. YOUNG, NatureServe, Arlington, VA.

441 Effects of bioaccumulative contaminants on intestinal flora of Bald Eagles and domestic chickens.  FAITH E. WILEY, H. FURMAN CANTRELL, WILLIAM W. BOWERMAN, Dept. Environ. Tox., Clemson Univ., Pendleton, SC, and WILLIAM C. BRIDGES, Dept. Exp. Stat., Clemson Univ.

442 Evolution of a citation.  RICHARD C. BANKS, USGS-PWRC, U.S. Natl. Mus., Washington, DC.

443 Effects of larval Protocalliphora (Diptera:  Calliphoridae) on reproductive success of secondary cavity-nesting birds.  DARRELL W. POGUE, Dept., Biol., Univ. Texas, Tyler, TX.

444 Breeding biology of grassland birds in western New York:  management implications.  CHRISTOPHER J. NORMENT, Dept. Biol. Sci., SUNY Brockport, Brockport, NY.

445 Spatial synchrony in bird populations linked to synchronous insect fluctuations and regional climatic variation.  JASON JONES, PATRICK J. DORAN and RICHARD T. HOLMES, Dept. Biol. Sci., Dartmouth Coll., Hanover, NH.

446 Comparing infestation rates of a chigger mite (Acarina:  Trombiculidae) on resident and migratory birds in coffee agroecosystems of Chiapas, Mexico.  THOMAS V. DIETSCH, School Nat. Res. & Environ., Univ. Michigan, Ann Arbor, MI.

447 Effects of hunter preference on observed sex and age ratios of harvested Mallards and American Black Ducks in eastern Canada.  JEAN-FRANÇOIS GOBEIL, Natl. Wildl. Res. Center, Canadian Wildl. Serv., Hull, PQ.

448 Selective use of nest-lining materials by Burrowing Owls.  MATTHEW DENMAN SMITH and COURTNEY J. CONWAY, Arizona Coop. Fish & Wildl. Res. Unit, Univ. Arizona, Tucson, AZ.

449 Abundance and conservation status of vultures in the former Soviet Union.  TODD KATZNER, Dept. Biol., Arizona State Univ., Tempe, AZ, SERGEI SKLYARENKO, Inst. Zool., Almaty, Kazakhstan. ALEXANDER GAVASHELISHVILI, Georgian Center Conserv. Wildl., Tbilisi, Georgia, MICHAEL McGRADY, Nat. Res., Ltd., Krems, Austria, and KEITH BILDSTEIN, Hawk Mountain Sanctuary, Kempton, PA

450 Phylogeny for species in the family Rallidae, based on mitochondrial and nuclear gene sequences.  BETH SLIKAS, Mus. Vert. Zool., Univ. California, Berkeley, CA, STORRS L. OLSON and ROBERT C. FLEISCHER, Smithsonian Inst., Washington, DC.

451 Roost location patterns and roost characteristics of young American Crows.  KEVIN J. McGOWAN, Cornell Lab. Ornithol, Ithaca, NY; ANNE B. CLARK, Dept. Biol., Binghamton Univ., Binghamton, NY; JENNIFER SENECAL, New York State Dept. Health, Ithaca, NY; RACHEL CURTIS, Cornell Lab. Ornithol., and DOUGLAS A. ROBINSON, Jr., Dept. Biol., Binghamton Univ.

452 Stopover migration sites used by Great Lakes' Piping Plovers.  VANESSA K. POMPEI, Conserv. Biol. Prog., Univ. Minnesota, St. Paul, MN; and FRANCESCA J. CUTHBERT, Dept. Fish. & Wildl. and Conserv. Biol., Univ. Minnesota, St. Paul, MN.

453 Nesting ecology of grassland birds on reclaimed surface-mined lands.  THOMAS P. DIXON and ROEL R. LOPEZ, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX.

454 Recruitment and the spatial organization of Surf Scoter populations during winter in the Strait of Georgia, British Columbia.  SAMUEL A. IVERSON, Centre Wildl. Ecol., Simon Fraser Univ., Burnaby, BC.

455 *The effects of forest fragmentation on post-fledging survival and dispersal of a forest songbird.  SCOTT A. RUSH, Dept. Biol., York Univ., North York, ON.

456 *Patterns of salt marsh use by wading birds in Rhode Island.  CAROL L. TROCKI and PETER W. C. PATON, Dept. Nat. Res. Sci., Univ. Rhode Island, Kingston, RI.

457 Using orientation experiments to determine natal origins of fall migrants at Long Point, Ontario. MARTHA L. ALLEN, Watershed Ecosys. Grad. Prog., Trent Univ., Peterborough, ON; ERICA NOL, Biol. Dept., Trent Univ., Peterborough, ON; and DAVID HUSSELL, Ontario Min. Nat. Res., Peterborough, ON.

458 Habitat use and population monitoring of Buff-breasted Sandpipers.  CLINTON W. JESKE, WAYNE NORLING, PAUL C. CHADWICK, W. BARROW and S. WILSON, Nat. Wetlands Res. Center, Lafayette, LA.

459 The response of Black Guillemots to recent warming trends in the western Arctic.  GEORGE J. DIVOKY, Inst. Arctic Biol., Univ. Alaska, Fairbanks, AK.

460 "New" migration patterns in Ruby-throated Hummingbirds.  BILL HILTON Jr., Hilton Pond Center for Piedmont Nat. Hist., York, SC.

461 Nocturnal habitat use by American Woodcock wintering in east Texas.  JEFFREY P. DUGUAY, J. R. GLENN and R. MONTAGUE WHITING, Jr., Arthur Temple Coll. For., Stephen F. Austin State Univ., Nacogdoches, TX.

462 Nest site characteristics and resource partitioning among three dove species in Mason, TX.  HEATHER A. MATHEWSON, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX; T.WAYNE SCHWERTNER, Texas Parks & Wildl., Mason, TX, and NOVA J. SILVY, Dept. Wildl. & Fish. Sci., Texas A&M Univ.

463 Sex and geographic variation in body size of Long-billed Curlews.  BRUCE D. DUGGER, Dept. Fish. & Wildl., Oregon State Univ., Corvallis, OR, and DENNIS M. FORSYTHE, Biol. Dept., Citadel, Charleston, SC.

464 *Winter territoriality and site fidelity among California Towhees.  LAURYN BENEDICT and WALTER D. KOENIG, Mus. Vert. Zool. and Dept. Integrat. Biol., Univ. California, Berkeley, CA.

465 Organochlorine pesticide contamination in Nearctic resident birds.  JEFF HORVATH, R. GIVEN HARPER, Dept. Biol., Illinois Wesleyan Univ., Bloomington, IL; ANGELO CAPPARELLA, Dept. Biol. Sci., Illinois State Univ., Normal, IL; JEFF FRICK, Dept. Chem., Illinois Wesleyan Univ., JOHN GERWIN and REBECCA BROWNING, North Carolina State Mus. Nat. Sci., Raleigh, NC.

466 Genetic diversity and structure in the Gadwall.  JEFFREY L. PETERS and KEVIN E. OMLAND, Dept. Biol. Sci., Univ. Maryland, Baltimore Co., Baltimore, MD.

467 Distribution, abundance, and nesting of California Black Rail in the San Francisco Bay Region in relation to habitat and landscape characteristics.  HILDIE SPAUTZ, NADAV NUR and DIANA STRALBERG, Point Reyes Bird Observ, Stinson Beach, CA.

468 Hermit Thrushes disperse pondberry, an endangered plant species.  PAUL B. HAMEL, CARL G. SMITH III, R. MARGARET S. DEVALL and NATHAN M. SCHIFF, USDA For. Serv., Southern Res. Sta., Stoneville, MS.

469 A long-term study of extrapair paternity in the Splendid Fairy-wren.  MICHAEL WEBSTER, School Biol. Sci., Washington State Univ., Pullman, WA; KEITH TARVIN, Dept. Biol., Oberlin Coll., Oberlin, OH; ELAINA TUTTLE, Dept. Life Sci., Indiana State Univ., Terre Haute, IN; and STEPHEN PRUETT-JONES, Dept. Ecol. & Evol., Univ. Chicago, Chicago, IL.

470 Bluethroats arrive on their breeding grounds with surplus fat stores:  test of the Time-Constraint Hypothesis.  JEFFREY MOLLENHAUER, FRANK MOORE, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS; and ROLAND SANDBERG, Dept. Animal Ecol., Lund Univ., Lund, Sweden.

471 Avian response to spring burning in the Sierra Nevada.  KAREN BAGNE, JOHN ROTENBERRY, Dept. Biol., Univ. California, Riverside, CA, and KATHRYN PURCELL, USDA For. Serv., Sierra Nevada Res. Center, Fresno, CA.

472 *Managing grassland birds on military installations in the eastern United States.  JAMES J. GIOCOMO and DAVID A. BUEHLER, Dept. For., Wild. & Fish., Univ. Tennessee, Knoxville, TN.

473 *Influence of landscape matrix, microclimate, and habitat on wintering birds in riparian forests. KELLY A. ATCHISON, Environ. Sci. Graduate Prog., Ohio State Univ., Columbus, OH, and AMANDA D. RODEWALD, School Nat. Res., Ohio State Univ.

474 *Osteological perspectives on the phylogeny of recent and fossil furnarioids.  SANTIAGO CLARAMUNT, Museo Nacional de História Natural, Montevideo, Uruguay.

475 *Is songbird breeding territory selection influenced by nest predation and brood parasitism risk?  KIRSTEN R. HAZLER, Warnell School For. Res., Univ. Georgia, Athens, GA.

476 *Effects of female condition on reproductive success in Tree Swallows.  JACQUELINE K. NOOKER, PETER O. DUNN and LINDA A. WHITTINGHAM, Dept. Biol. Sci., Univ. Wisconsin-Milwaukee, WI.

477 *Using long-term bird banding data to estimate population trends of migrant landbirds.  JASON E. OSENKOWSKI and PETER W. C. PATON, Dept. Nat. Res. Sci., Univ. Rhode Island, Kingston, RI.

478 *Effects of an intense winter fire on Florida Scrub-Jay habitat use.  CHRISTOPHER D. VALLIGNY, ROBERT L. CURRY, Dept. Biol., Villanova Univ., Villanova, PA, and GLEN E. WOOLFENDEN, Archbold Biol. Sta., Venus, FL.

479 Comparative use of longline oyster beds and adjacent tidal flats by shorebirds on Humboldt Bay, California.  LINDA M. C. MOORE and MARK A. COLWELL, Dept. Wildl., Humboldt State Univ., Arcata, CA.

480 Abundance of spring staging Black Brant throughout the Pacific Flyway in relation to eelgrass abundance and site isolation.  JEFFREY E. MOORE and JEFFREY M. BLACK, Dept. Wildl., Humboldt State Univ., Arcata, CA.

481 An experimental comparison of double-observer and removal modeling for estimating bird abundance.  DANIEL M. SCHEIMAN, JEFFREY E. MOORE and ROBERT K. SWIHART, Dept. For. & Nat. Res., Purdue Univ., West Lafayette, IN.

482 ABC's Cats Indoors! Campaign.  LINDA WINTER, American Bird Conservancy, Washington, DC.

483 Prediction of bird community composition based on ecological niche modeling, and implications for biodiversity conservation in the Balsas Basin, Mexico.  T. PATRICIA FERIA A., Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO, and A. TOWNSEND PETERSON, Nat. His. Mus., Univ. Kansas, Lawrence, KS.

484 Tracking local movements of Bonaparte's Gulls on the Niagara River:  a radio telemetry study.  GLENN C. BARRETT, Canadian Wildl. Serv., Environment Canada, Burlington, ON; DAN deROOS, Lower Great Lakes Fisheries Resources Office, U.S. Fish & Wildl. Serv., Amherst, NY; CHIP WESELOH, G. E. JOHN SMITH, TANIA HAVELKA, Canadian Wildl.Serv., Environment Canada, Downsview, ON; and CYNTHIA PEKARIK, Canadian Wildl. Serv., Environment Canada, Burlington, ON.

485 Using satellite transmitters to track movements of Herring Gulls from the upper Great Lakes: 1999 - 2002.  GLENN C. BARRETT, Canadian Wildl. Serv., Environment Canada, Burlington, ON; BRADY POLLOCK, CAROLYN MATKOVICH and CHIP WESELOH, Canadian Wildl. Serv., Environment Canada, Downsview, ON.

486 Influence of foraging-perch habitat on Bald Eagles in west-central Illinois.  KELLY J. McKAY and GREGORY M. QUARTUCCI, Midwest Biol. Res. & Monitoring Inst., Hampton, IL.

487 Summary of Red-shouldered Hawk reproductive success along the Upper Mississippi River Valley, 1983 - 1997.  KELLY J. McKAY, Midwest Biol. Res. & Monitoring Inst., Hampton, IL; JON W. STRAVERS, Midwest Raptor Res. Fund, McGregor, IA; GARY V. SWENSON and CASEY J. KOHRT, U.S. Army Corps of Engineers, Rock Island Dist., Pleasant Valley, IA.

488 Developmental toxicity of PCBs for first and second generation American Kestrels.  KIM J. FERNIE, Canadian Wildl. Serv., Burlington ON; JUDIT SMITS, GARY BORTOLOTTI, Univ. Saskatchewan, Saskatoon, SK; KEN DROUILLARD, Univ. Windsor, Windsor, ON; and DAVID BIRD, Avian Sci. Conserv. Centre, McGill Univ., Ste. Anne de Bellevue, PQ.

489 *Complex vocalizations and song structure of Wedge-tailed Sabrewings.  CLEMENTINA GONZALEZ, JUAN FRANCISCO ORNELAS and LEONOR JIMENEZ; Dept. Ecol. y Comp. Animal, Inst. Ecologia, AC, Xalapa, Ver., Mexico.

490 *Use of artificial eggs to determine egg losses and predation in a Neotropical passerine.  WALTER S. SVAGELJ, MYRIAM E. MERMOZ, VALENTINA FERRETTI and GUSTAVO J. FERNÁNDEZ, Facultad de Ciéncias Exactas y Naturales, Universidad de Buenos Aires, Argentina.

491 Phylogenetic analysis of the 13 owl species with a special consideration to the Mimizuku.  SHI H. RYU, Dept. Biol., Kyungpook Natl. Univ., Daegu, Korea; UI W. HWANG, Dept. Biol., Teachers Coll., Kyungpook Natl. Univ., and HEE C. PARK, Dept. Biol., Kyungpook Natl. Univ.

492 *Nestling competition of sympatric cowbirds:  the role of gape and flange coloration.  HOPE R. McGAHA, Dept. Zool., Univ. Manitoba, Winnipeg, MB.

493 *Geomorphology, vegetation, and bird community in Atlantic forest fragments.  RÔMULO RIBON, Ecol. Cons. Man. Vida Silv., Univ. Fed. Minas Gerais, Belo Horizonte, MG, Brazil; MIGUEL ÂNGELO MARINI, Dept. Zoologia, Univ. Brasília, Brasília, DF, Brazil, and PAULO DE MARCO Jr., Depto. Biol. Geral., Univ. Fed. Viçosa, MG, Brazil.

494 *Defining thermoneutrality with a Bayesian model:  do open habitat birds have lower critical temperatures than forest species?  NATHANIEL E. SEAVY and TOSHINORI OKUYAMA, Dept. Zool., Univ. Florida, Gainesville, FL.

495 *Effects of incubation behavior on embryo metabolism.  CHRISTOPHER R. OLSON, CAROL VLECK and DAVID VLECK, Dept. Zool & Gen., Iowa State Univ., Ames, IA.

496 Extra-pair fertilization and effective population size in the Song Sparrow.  KATHLEEN D. O'CONNOR, AMY MARR and PETER ARCESE, Dept. Applied Conser. Res., Univ. British Columbia, Vancouver, BC.

497 Shorebirds feeding in mixed flocks in Fracasso Beach, Península Valdés, Argentina.  VERÓNICA L. D'AMICO, LUIS O. BALA and M. DE LOS ÁNGELES HERNÁNDEZ, CENPAT (CONICET) Puerto Madryn, Chubut, Argentina.

498 Protecting birds by conserving islands:  an integrated regional approach.  BERNIE TERSHY, Island Conserv. & Ecol. Group, Center Ocean Health, Univ. California, Santa Cruz, CA, DONALD CROLL, Conserv. & Ecol. Group and Ecol. & Evol. Biol., Univ. California, JOSE ANGEL SANCHEZ, Grupo de Ecol. y Conserv. de Islas, Mexico, BRAD KEITT, Island Conserv. & Ecol. Group, C. JOSH DONLAN, Conserv. & Ecol. Group, BILL WOOD, MIGUEL ANGEL HERMOSILLO, Grupo de Ecol. y Conserv., and GREGG HOWALD, Island Conserv., Canada.

499 Tail streamer function and sexual selection in the Red-tailed Tropicbird.  ALLISON C. VEIT and IAN L. JONES, Dept. Biol., Memorial Univ. Newfoundland, St. John’s, NF.

500 WildSpectra, a new program for real-time display and analysis of bird song.  R. HAVEN WILEY, Dept. Biol., Univ. North Carolina, Chapel Hill, NC.

501 *Reproductive success and nest site selection of Grasshopper Sparrow populations in southern West Virginia.  FRANK K. AMMER, Div. For., West Virginia Univ., Morgantown, WV, and PETRA BOHALL WOOD, West Virginia Coop. Fish & Wildl. Res. Unit, BRD/USGS, West Virginia Univ.

502 Begging and provisioning in Common Terns.  TASHA E. SMITH and MARTY L. LEONARD, Dept. Biol., Dalhousie Univ., Halifax, NS.

503 Naturalized parrots in California:  is "exotic" becoming "invasive?"  KIMBALL L. GARRETT, Nat. Hist. Mus. Los Angeles Co., Los Angeles, CA, and KAREN T. MABB, Dept. Biol. Sci., California Polytechnic Univ., Pomona, CA.

504 *Influence of human and climatic factors on naturalized parrot populations in California:  where will parrots become established next?  KAREN T. MABB, Dept. Biol. Sci., California State Polytech. Univ., Pomona, CA.

505 Providing research experience for K-12 teachers:  an alternative way to connect to K-12 classrooms.  WENDY A. KUNTZ, Prog. EECB, Dept. Zool., Univ. Hawaii at Manoa, Honolulu, HI, and DONALD B.YOUNG, Coll. Edu., Univ. Hawaii at Manoa.

506 *Nest predation strategies:  how do Steller's Jays find nests?  STACEY VIGALLON and JOHN MARZLUFF, Coll. For. Res., Univ. Washington, Seattle, WA.

507 *Assessing the impacts of expanding Barred Owl populations on the Northern Spotted Owl in Olympic National Park, Washington.  SCOTT A. GREMEL, Coll. For. Res., Univ. Washington, Seattle, WA.

508 The influence of extra-pair behavior on spatial investment in nest defense.  PAUL A. CALLO, Dept. Biol., Univ. Maryland, College Park, MD.

509 The role of birds and the importance of microsites in the regeneration of south-temperate rainforest.  MICHAEL P, MILLESON and KATHRYN E. SIEVING, Dept. Wildl. Ecol. & Conserv., Univ. Florida, Gainesville, FL.

510 Bird communities and silvicultural systems in a yellow birch-balsam fir ecosystem.  MARCEL DARVEAU, CAROLINE GIRARD, Dep. sc. bois et foret, Univ. Laval, Quebec, PQ, JEAN-PIERRE SAVARD, Serv. can. faune, Quebec, PQ, and JEAN HUOT, Dep. biologie, Univ. Laval

511 Effects of clearcutting on the spatial arrangement of breeding bird territories.  WENDY K. GRAM, Oklahoma Mus. Nat. Hist., Univ. Oklahoma, Norman, OK; PAUL A. PORNELUZI, Div. Sci. & Math, Central Methodist Coll., Fayette, MO; JOHN FAABORG, Div. Biol. Sci, Univ. Missouri, Columbia, MO, RICK L. CLAWSON and CRAIG D. SCROGGINS, Missouri Dept. Conserv., Columbia, MO.

512 Avian biodiversity associated with agricultural wetlands in southern Louisiana.  JAY V. HUNER and MICHAEL J. MUSUMECHE, Crawfish Res. Center, Univ. Louisiana at Lafayette, Lafayette, LA.

513 Habitat selection and reproductive success of Ash-throated Flycatchers along a desert environmental gradient.  TIMOTHY S. REDMAN, Dept. Biol., Univ. California, Riverside, CA.

514 Patterns of corticosterone secretion vary with energetic condition in Hermit Thrushes during autumn migration.  REBECCA HOLBERTON and JENNIFER LONG, Dept. Biol. Sci., Univ. Maine, Orono, ME.

515 Phylogeny of the herons of the world.  KEVIN G. McCRACKEN, Inst. Arctic Biol. and Dept. Biol. & Wildl., Univ. Alaska, Fairbanks, AK; and FREDERICK H. SHELDON, Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

516 Suitability of mangrove habitat types to overwintering migratory birds in Puerto Rico.  LEONARD REITSMA, Dept. Nat. Sci., Plymouth State Coll., Plymouth NH, JOSEPH SMITH, WILLIAM DELUCA, ROBERT REITSMA and PETER P. MARRA, Smithsonian Environ. Res. Center, Edgewater, MD.

517 Is there evidence for continued female-female pairing in Western Gulls breeding on Santa Barbara Island?  CAROLINA PICKENS and GEORGE L. HUNT, Dept. Ecol. & Evol. Biol., Univ. California, Irvine, CA.

518       Vacant

519 Role of gonadal hormones in the pre-nuptial molt of American Goldfinch.  MEREDITH HUNTER and REBECCA HOLBERTON, Dept. Biol. Sci., Univ. Maine, Orono, ME.

520 *Why are there more migrants in the North?  an investigation of the geographic patterns of breeding bird species diversity within North America.  JEFFREY J. BULER and JEFFREY W. FARRINGTON, Dept. Bio. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

521 Variation in Piping Plover foraging site quality in the Great Plains.  DANIELLE Le FER, JAMES FRASER, Dept. Fish. & Wildl., Virginia Tech, Blacksburg, VA, and CASEY D. KRUSE, U.S. Army Corps of Engineers, Gavins Point Project, Yankton, SD.

522 Examining the effects of interspecific competition between Barrow's Goldeneye and Bufflehead. MATTHEW R. EVANS, Centre Wildl. Ecol., Dept. Biol. Sci., Simon Fraser Univ., Burnaby, BC.

523 What is missing from San Clemente Loggerhead Shrike habitat?  SUELLEN LYNN, ERIC L. KERSHNER, Inst. Wildl. Stud., San Diego, CA; and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

524 New distributional records of bird fauna in the Sierra Gorda Biosphere Reserve, Queretaro, Mexico.  ROBERTO PEDRAZA-RUIZ, Grupo Ecological Sierra Gorda I.A.P., Jalpan, Queretaro, Mexico.

525 Toucan-generated seed shadows:  a preliminary study.  KIMBERLY M. HOLBROOK and BETTE A. LOISELLE, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO.

526 Seasonal changes in clutch size of the San Clemente Sage Sparrow.  FREDERIC BEAUDRY, NICOLE M. MUNKWITZ and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

527 Are traditional methods of determining nest predators and nest fates reliable?  an experiment with Wood Thrushes using miniature video cameras.  GARY E. WILLIAMS and PETRA BOHALL WOOD, USGS BRD West Virginia Coop. Fish & Wildl. Res. Unit and Div. For., West Virginia Univ., Morgantown, WV.

528 Vacant

529 Spatial modeling of Hawaiian forest bird densities.  MARCOS GORRESEN, RICHARD J. CAMP, BETHANY L. WOODWORTH and THANE K. PRATT, Pacific Island Ecosys. Res. Center, USGS Biol. Res. Div., Hawaii Natl. Park, HI.

529b Population estimates, distribution and habitat associations for Hawaiian forest birds.  RICHARD J. CAMP, MARCOS GORRESEN, BETHANY L. WOODWORTH and THANE K. PRATT, USGS-BRD Pacific Island Ecosys, Res, Center, Hawaii Natl. Park, HI.

530 Variation in the respiratory quotient of Black-capped Chickadees.  SHELDON J. COOPER, Dept. Biol., Univ. Wisconsin-Oshkosh, Oshkosh, WI.

531 Development of polymorphic microsatellite markers that amplify across two eagle genera.  JOSEPH D. BUSCH, Dept. Biol., Northern Arizona Univ., Flagstaff, AZ, TODD E. KATZNER, Dept. Biol., Arizona State Univ., Tempe, AZ, EVGENY BRAGIN, Naurzum Zapovednik, Karamendy, Kazakhstan, and PAUL KEIM, Dept. Biol., Northern Arizona Univ.

532 Plumage color and feather bacteria in House Finches and Eastern Bluebirds.  MATTHEW D. SHAWKEY, SHREEKUMAR R. PILLAI, GEOFFREY E. HILL, SHARON D. ROBERTS and LYNN E. SIEFFERMAN, Dept. Biol., Auburn Univ., Auburn, AL.

533 A poster for the identification of Caspian Tern bill loads of the Pacific Coast.  PENNY SPIERING and DAVID CRAIG, Biol. Dept., Willamette Univ., Salem, OR.

534 Plant phenology affects foraging habitat choice of spring migrant warblers at a riparian stopover site.  LAURA J. McGRATH and CHARLES van RIPER III, USGS/FRESC Colorado Plateau Field Sta., Northern Arizona Univ., Flagstaff, AZ.

535 Incubation history and embryonic development in Boat-tailed Grackles.  NANCY J. CLUM, Environ. Sci., DePaul Univ., Chicago, IL; and MARION R. PREEST, Joint Sci., Claremont Coll., Claremont, CA.

536 Modeling Northern Spotted Owl watershed and nest-site occupancy in central coastal California.  KATIE FEHRING, DIANA STRALBERG, Point Reyes Bird Observ., Stinson Beach, CA; DAWN ADAMS, Point Reyes Natl. Seashore, CA; DAPHNE HATCH, Golden Gate Nat. Rec. Area, CA; NADAV NUR and LARS POMARA, Point Reyes Bird Observ.

537 Feeding habits of the Kelp Gull in Isla La Vieja in central Peru.  ESMERALDA FLORES, Univ. Nac. Agraria La Molina, Lima-Peru, and CARLOS ZAVALAGA, Dept. Biol. Sci., Univ. North Carolina at Wilmington, NC.

538 The one-gel genome:  the entire mitochondrial DNA sequence of the Whistling Swan.  JULIE FEINSTEIN, Am. Mus. Nat. Hist., New York, NY.

539 Annual survival estimation confounded by incomplete breeding site-fidelity:  study designs that may help.  MATTHEW R. MARSHALL, For. Res., Pennsylvania State Univ., University Park, PA; DUANE R. DIEFENBACH, USGS Pennsylvania Coop. Fish & Wildl. Res. Unit, Pennsylvania State Univ., LARRY A. WOOD and ROBERT J. COOPER, For. Res., Univ. Georgia, Athens, GA.

540 Productivity of the Aplomado Falcon in Chihuahua, Mexico.  ALBERTO MACIAS-DUARTE, The Peregrine Fund, Chihuahua, Mexico, ALBERTO LAFON-TERRAZAS, Universidad Autónoma de Chihuahua, Chihuahua, México; ANGEL B. MONTOYA, The Peregrine Fund, Boise ID; and ROBERT TAFANELLI, Border Wildl. Consultants, Las Cruces NM.

541 Habitat selection for nest cups in the genus Pluvialis at Nome, Alaska.  WHITNEY NEKOBA, Kurtistown, HI; PHILLIP L. BRUNER, ANDREA E. BRUNER and ROBERT N. WINGET, Dept. Biol., Brigham Young Univ. Hawaii, Laie, HI.

542 Choice of extra-pair mates by female Green-rumped Parrotlets.  COLIN HUGHES, Dept. Biol., Univ. Miami, Coral Gables, FL, STEVEN R. BEISSINGER, Dept. ESPM, Univ. California, Berkeley, CA, and REBECCA R. MELLAND, Dept. Biol., Univ. North Dakota, Grand Forks, ND.

543 Modeling apparent survival probability and reproductive output of California Spotted Owls using forest cover types.  JENNIFER A. BLAKESLEY, Dept. Fish. & Wildl. Biol., Colorado State Univ., Ft. Collins, CO.

544 Changes in avian community structure in a tidally restricted coastal wetland following salt marsh restoration.  PETER W. C. PATON, FRANCIS C. GOLET and DENNIS H. A. MYSHRALL, Dept. Nat. Res. Sci., Univ. Rhode Island, Kingston, RI.

545 *Future of Salton Sea birds in jeopardy?  MARK B. MENDELSOHN, WILLIAM I. BOARMAN and ROBERT N. FISHER, U.S. Geol. Surv., San Diego Field Sta., CA.

546 Use of artificial nest structures to mitigate Bald Eagle nest destruction.  SCOTT A. KIMBALL, MARC J. BECHARD, Dept. Biol. and Raptor Res. Center, Boise State Univ., Boise, ID, and GREGORY S. KALTENECKER, Idaho Bird Observatory, Dept. Biol., Boise State Univ.

547 Relationships between width of post-logging beach buffer strips and composition of forest bird communities of southeast Alaska.  MICHELLE KISSLING and EDWARD GARTON, Dept. Wildl. Res., Univ. Idaho, Moscow, ID.

548 *Multiple broods are better that extrapair mating in House Wrens.  NICOLE E. POIRIER, LINDA A. WHITTINGHAM and PETER O. DUNN, Dept. Biol. Sci., Univ. Wisconsin-Milwaukee, Milwaukee, WI.

549 Effects of climate on adult body condition, breeding ecology, and population size of Semipalmated Plovers in Churchill, Manitoba.  KATHERINE A. R. GRAHAM, Watershed Ecosys. Grad. Prog., Trent Univ., Peterborough, ON; and ERICA NOL, Biol. Dept., Trent Univ.

550 Temporal variation in Mexican Spotted Owl reproduction.  MYLEA L. PETERSBURG, CHRISTOPHER A. MAY, R. J. GUTIERREZ and MARK E. SEAMANS, Dept. Fish. Wildl. Cons. Biol., Univ. Minn., St. Paul, MN.

551 Foraging behavior, territoriality, nest placement, and nest success of American Avocets on saline vs. freshwater wetlands.  KELLY M. WELLS, Dept. Biol., Univ. Nebraska-Omaha, Omaha, NE.

552 Effects of alien rat predation and diseases on demography of the Oahu `Elepaio.  ERIC A. VANDERWERF, U.S. Fish & Wildl. Serv., Honolulu, HI.

553 Potential underlying mechanisms leading to the association of Burrowing Owls with agriculture.  COLLEEN E. MOULTON, JAMES R. BELTHOFF and RYAN S. BRADY, Dept. Biol. and Raptor Res. Center, Boise State Univ., Boise, ID.

554 Winter home range estimates of Henslow's Sparrows in coastal Mississippi.  BENNY S. THATCHER, DAVID G. KREMENTZ, USGS Arkansas Coop. Fish & Wildl. Res. Unit, Dept. Biol., Univ. Arkansas, Fayetteville, AR; and MARK S. WOODREY, U.S. Fish & Wildl. Serv., Jackson, MS.

555 Species or host races?  spatial and temporal genetic analysis of indigobird populations.  KRISTINA M. SEFC, Dept. Biol., Boston Univ., Boston, MA; ROBERT B. PAYNE, Mus. Zool., Univ. Michigan, Ann Arbor, MI, and MICHAEL D. SORENSON, Dept. Biol., Boston Univ.

556 Baiting and waiting:  use of dung as a tool by Burrowing Owls. DOUGLAS J. LEVEY, R. SCOTT DUNCAN and C. J. LEVINS. Dept. Zool., Univ. Florida, Gainesville, FL.

557 Patterns of temporal and geographical variation in prey selection and reproductive success by Crested and Least Auklets.  GAIL S. FRASER, Texas Inst. Ocean., Texas A&M Galveston, Galveston, TX, JEFFREY C. WILLIAMS, Alaska Maritime Natl. Wildl. Refuge, Homer, AK, IAN L. JONES, Dept. Biol., Memorial Univ. Newfoundland, St. John's, NF, FIONA M. HUNTER, Dept. Animal & Plant Sci., Sheffield Univ., LISA SCHARF, G. VERNON BYRD, Alaska Maritime Natl. Wildl. Refuge, and MARTIN RENNER, Memorial Univ. Newfoundland.

558 American Crow migration as a predictor of the spread of West Nile Virus in North America.  DAN TALLMAN, Northern State Univ., Aberdeen, SD, and
LON KIGHTLINGER, South Dakota Dept. Health, Pierre, SD.

559 Conservation implications of a variable prey base on Northern Goshawks in southeast Alaska.  STEPHEN B. LEWIS, Raptor Res. Center, Boise State Univ.,
Boise, ID; KIMBERLY TITUS, Alaska Dept. Fish & Game, Div. Wildl. Conser., Douglas, AK; and MARK R. FULLER, USGS For. & Rangeland Ecosys. Sci. Center - Snake River Field Sta., Boise, ID.

560 Survival rates of adult Northern Goshawks on the Tongass National Forest, southeast Alaska.  KIMBERLY TITUS, Alaska Dept. Fish & Game, Juneau, AK; CRAIG FLATTEN, Alaska Dept. Fish & Game, Ketchikan, AK; RICHARD LOWELL, Alaska Dept. Fish & Game, Petersburg, AK; and STEPHEN LEWIS, Alaska Dept. Fish & Game, Juneau.

561 *Northern Goshawk habitat selection in a Great Basin ecosystem.  KRISTIN W. HASSELBLAD, Dept. Biol., Boise State Univ., Boise, ID, and MARC J. BECHARD, Raptor Res. Center, Dept. Biol., Boise State Univ.

562 Effects of pond fish density, morphology and landscape features on the foraging ecology and nest site selection of Interior Least Terns.  A. C. KASNER and R. D. SLACK, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX.

563 Relationships between winter weather and trends in Northern Goshawk nesting territory occupancy and productivity.  GRAHAM D. FAIRHURST and MARC J. BECHARD, Dept. Biol., Boise State Univ., Boise, ID.

564 The physiological traits of Flammulated Owls and Northern Saw-whet Owls during fall migration:  an examination of the Migration-Modulation Hypothesis.  SARAH L. HAMILTON, Big Sur Ornithol. Lab. of Ventana Wilderness Soc., Big Sur, CA, PATRICIA J. HEGLUND, Dept. Biol., Univ. Idaho, ID, HUBERT SCHWABL, Dept. Biol., Washington State Univ., WA, and LYNDA LEPPERT, Dept. Biol., Boise State Univ., ID.

565 Range-wide population status and present-day hybrid zone of Golden-winged Warbler.  KENNETH V. ROSENBERG and SARA E. BARKER, Cornell Lab. Ornithol., Ithaca, NY.

566 Impacts of invasive exotic grasses on avian communities during the breeding season in south Texas.  ARON A. FLANDERS, WILLIAM P. KUVLESKY, Jr., Caesar Kleberg Wildl. Res. Inst., Texas A&M Univ. Kingsville, Kingsville, TX; DONALD C. RUTHVEN III, Texas Parks & Wildl. Dept., Artesia Wells, TX; and ROBERT E. ZAIGLIN, Piloncillo Ranch, TX.

567 An ornithological mystery solved: The Mascarene Starling Necropsar leguati is a Martinique Trembler.  ROBERT FLEISCHER, STORRS OLSON, Dept. Syst. Biol., Natl. Mus. Nat. Hist., Smithsonian Inst., Washington, DC; CLEMENCY FISHER, Liverpool Mus., UK; and ELDREDGE BERMINGHAM, Instituto Smithsonian de Investigaciones Tropicales, Balboa, Ancon, Republica de Panamá.

568 Correlations between food resource abundance and timing of songbird migration.  HOPE WOODWARD, Dept. Nat. Sci., Western New Mexico Univ., Silver City, NM.

569 The relationship of nest defense behavior to food availability and nest predation risk and the resulting fecundity consequences in Wrentits.  KRISTINE L. PRESTON, Dept. Biol., Univ. California, Riverside, CA.

570 Immunogenetic markers of "good genes" for a sexually-selected, parasite-dependent, male ornament in Wild Turkeys.  RICHARD BUCHHOLZ, Dept. Biol., Univ. Mississippi,  University, MS; MARY JONES, Dept. Biol., Univ. Louisiana-Monroe, Monroe, LA; STEVE HECHT, Grand Valley State Univ., Grand Valley, MI; and ANN FINDLEY, Univ.  Louisiana-Monroe.

571 Saguaro fruit:  an essential resource for Sonoran Desert birds?  BLAIR O. WOLF, Biol. Dept., Univ. New Mexico, Albuquerque, NM.

572 Breeding bird use on created tidal wetlands of southeast Virginia.  DAVID W. DesROCHERS, JASON C. KEAGY and DAN A. CRISTOL, Dept. Biol., Coll. William & Mary, Williamsburg, VA.

573 Modeling objectives and priorities for landbird conservation in the west Gulf Coastal Plain.  DEAN W. DEMAREST, Partners in Flight, Atlanta, GA, and R. RANDY WILSON, USFWS, Vicksburg, MS.

574 Predicting places of promise for Aplomado Falcons in the Chihuahuan Desert.  KENDAL E. YOUNG, DAWN M. BROWNING, QUINN H. HODGSON, JULIE L. LANSER, BRUCE C. THOMPSON and RAUL VALDEZ, Dept. Fish. & Wildl. Sci., New Mexico State Univ.  Las Cruces, NM.

575 Reproductive success in Swainson's Warblers:  assessing breeding habitat quality in bottomland hardwood forests and commercial pine plantations.  DONATA ROOME and THOMAS W. SHERRY, EE Biol. Dept., Tulane Univ., New Orleans, LA.

576 vacant

577 Ecology of bird mixed-species flocks in Atlantic forest fragments, southeastern Brazil.  MARCOS MALDONADO-COELHO, Depto. Biol., UFMG, Belo Horizonte, MG, Brazil, and Dept. Biol. & Internatl. Center for Tropical Ecol., Univ. Missouri, St. Louis, MO, and MIGUEL Â. MARINI, Depto. Biol., UFMG, Belo Horizonte, MG, Brazil and Depto. Zool., UNB, Brasília, DF, Brazil.
 

08:00  Continental Breakfast, Hotel Inter-Continental, Third Floor

09:00 Plenary 2 (LaSalle BC; and video feed to Pan-Am Auditorium for overflow crowd).
  On a wing and a prayer:  is endocrine disruption affecting birds?  THEO COLBORN, World Wildlife Fund -  Washington, DC.

10:00  Coffee Break, Hotel Inter-Continental, Third Floor

Symposium J (Vieux Carré - A).  Celebrating 100 years of bird banding in North America.  J. Tautin et al., organizers.

10:30 S073 Introductory remarks.  Symposium organizers

10:45 S074 The early history of bird banding in North America.  JEROME A. JACKSON, Whitaker Center Sci., Math. & Tech. Edu., Florida Gulf Coast Univ., Ft. Myers, FL.

11:00 S075 The roles and contributions of banding organizations to the North American bird banding program.  LUCIE METRAS, Canadian Wildl.Serv. Ottawa, ON, SARA R. MORRIS, Canisius Coll., Buffalo, NY, and BRENDA DALE, Canadian Wildl. Serv., Edmonton, AB.

11:15 S076 Bird banding and the study of migration.  FRANK R. MOORE, Univ. Southern Mississippi, Hattiesburg, MS.

11:30 S077 From individual behavior observations to broadly applied premises:  why bird banding has become THE essential tool in avian behavioral ecology studies.  M. VICTORIA McDONALD, Univ. Central Arkansas, Conway, AR.

11:45 S078 How have banding and marking helped us understand the habitat ecology of birds?  JEFFREY D. BRAWN, SCOTT R. SCHLOSSBERG, COURTNEY L. BLOOD, Univ. Illinois Urbana-Champaign, Champaign, IL, and JEFFREY P. HOOVER, Illinois Nat. Hist. Surv., Champaign, IL.

12:00 S079 The role of bird banding in the management of migratory bird hunting.  ROBERT J. BLOHM, US Fish & Wildl. Serv., Arlington, VA.

12:15 S080 The role of bird-banding in avian ecotoxicology.  D. V. CHIP WESELOH, Canadian Wildl. Serv., Downsview, ON, and CRAIG E. HEBERT, Natl. Wildl. Res. Centre, Ottawa, ON.

14:00 S081 Use of bird banding information to investigate disease, safety, and economic issues of birds and their interactions with humans.  ROBERT G. McLEAN, USGS Natl. Wildl. Health Center, Madison, WI, and STEPHEN C. GUPTILL, USGS Geographic Sci. Branch.

14:15 S082 North American bird banding and quantitative population ecology. JAMES D. NICHOLS and JOHN TAUTIN, U.S. Geol. Surv, Patuxent Wildl.Res. Cen, Laurel, MD.

14:30 S083 The role of banding in bird population monitoring.  CHARLES M. FRANCIS, Canadian Wildl. Serv., Ottawa, ON.

14:45 S084 Bird banding and the restoration of depleted and extirpated populations.  STEPHEN A. NESBITT, Florida Fish & Wildl. Conserv. Comm., Gainesville, FL.

15:00 S085 The role of banding in promoting an international perspective to migratory bird conservation.  BRAD A. ANDRES, US Fish & Wildl. Serv., Arlington, VA.

15:15 S086 A look to the future of bird banding in North America.  DAVID F. DeSANTE, Institute for Bird Populations, Point Reyes Station, CA.

15:30 S087 Closing remarks.  Symposium organizers.

Session 4B (LaSalle - BC).  Systematics.  Robert M. Zink, chair.

10:30 95 *Has temporal segregation led to sympatric divergence in Band-rumped Storm-Petrels?  ANDREA L. SMITH, Dept. Biol., Queen's Univ., Kingston, ON; MARK BOLTON, Dept. Ocean. & Fish., Univ.  Azores, Horta, Portugal, and VICKI L. FRIESEN, Dept. Biol., Queen's Univ.

10:45 96 *Species limits and phylogeography of southern hemisphere gulls.  ANDREW D. GIVEN, Dept. Zool., Univ. Toronto, Toronto, ON;  and ALLAN J. BAKER, Centre Biodiversity & Conserv. Biol.,  Royal Ontario Mus., Toronto, ON.

11:00 97 The role of mitochondrial DNA studies in elucidating avian subspecies.  ROBERT M. ZINK, Bell Mus., Univ. Minnesota, St Paul, MN.

11:15 98 Microsatellite genetic variation across a manakin hybrid zone.  TAMAKI YURI, Lab. Analytical Biol., Smithsonian Inst., Suitland, MD; NIRMAL K. BHAGABATI, Inst. Genomic Research, Rockville, MD; and MICHAEL J. BRAUN, Lab. Analytical Biol., Smithsonian Inst.

11:30 99 *A first look at genetic differentiation across the Solomon Archipelago:  do genetics and morphology concur?  CATHERINE E. SMITH and CHRISTOPHER E. FILARDI, Burke Mus. and Dept. Zool., Univ. Washington, Seattle, WA.

11:45 100 *Biogeography and plumage divergence in Monarch Flycatchers of the Solomon Archipelago.  CHRISTOPHER E. FILARDI and CATHERINE E. SMITH, Burke Mus. and Dept. Zool., Univ. Washington, Seattle, WA.

12:00 101 A surprise from the Solomons:  "Podargus ocellatus inexpectatus (Marbled Frogmouth)" represents a distinct and new genus.  ANDREW W. KRATTER, Florida Mus. Nat. Hist., Univ. Florida, Gainesville, FL; NIGEL CLEERE, England, UK; DAVID W. STEADMAN, Florida Mus. Nat. Hist., MICHAEL J. BRAUN, Lab. Molecular Syst., Smithsonian Inst., Suitland, MD; and CHRISTOPHER E. FILARDI, Burke Mus., Univ. Washington, Seattle, WA.

12:15 102 "Amazona" xanthops -  taxonomic status of the Yellow-faced Amazon Parrot.  JOSEPH W. BROWN, TIMOTHY  BIRT and VICKI FRIESEN, Dept. Biol., Queen's Univ., Kingston, ON.

Session 4C (Cabildo).  Breeding Biology.  Joel J. Adamson, chair.

10:30 103 *Sex-biased territoriality, movement patterns, and helping behavior in Rufous-tailed Jacamars.  GARY M. LANGHAM, JUSTIN M. HITE, Dept. Ecol. & Evol. Biol., Cornell Univ., Ithaca, NY, and JEFFREY M. DaCOSTA, Transkaryotic Therapies, Inc., Cambridge, MA.

10:45 104 Ecology of African Snipe Gallinago nigripennis:  an endemic bird of high altitude wetlands.  CECILIA M. GICHUKI, Centre Biodiv., Natl. Mus. Kenya, Nairobi, Kenya, EUNICE W. KAIRU and ROMANUS O. OKELO, Zool. Dept., Kenyatta Univ., Nairobi, Kenya.

11:00 105 *Nest-site preference in Lark Sparrows.  JOEL J. ADAMSON, EPO Biol. Dept., Univ. Colorado, Boulder, CO.

11:15 106 *Factors affecting nesting success of American Oystercatchers in North Carolina.  CONOR P. McGOWAN, THEODORE R. SIMONS, Dept. Zool. and Coop. Fish & Wildl. Res. Unit, North Carolina State Univ., Raleigh, NC, JEFF R. CORDES, Cape Lookout Natl. Seashore, Harkers Island, NC, and MARCIA LYONS, Cape Hatteras Natl. Seashore, Manteo, NC.

11:30 107 *Water availability and reproductive success in desert birds:  the effect of water supplementation on the Black-throated Sparrow.  SHARON J. COE, Dept. Biol., Univ. California, Riverside, CA.

11:45 108 *Relative importance of food and nest site availability on breeding habitat selection by Prothonotary Warblers.  DAWN E. W. DRUMTRA, Inst. Ecol., Univ. Georgia, Athens, GA, and ROBERT J. COOPER, School For. Res., Univ. Georgia, Athens, GA.

12:00 109 *Extra-pair paternity in Golden-winged Warblers:  implications of mate choice for hybridization with Blue-winged Warblers.  RACHEL FRASER, TIM P. BIRT and RALEIGH J. ROBERTSON, Dept. Biol., Queen's Univ., Kingston, ON.

12:15 110 *Nest cavity availability and selection in central British Columbia.  KATHRYN E. H. AITKEN.  Centre for Applied Conserv. Res., Univ. British Columbia, Vancouver, BC, and KATHY MARTIN, Centre for Applied Conserv. Res., Univ. British Columbia, and Canadian Wildl. Serv., Delta, BC.

Session 4D (Pan-Am Auditorium).  Conservation.  Therese M. Donovan, chair.

10:30 111 Area effects in habitat fragmentation studies.  RALPH G. MANCKE, Langhorne, PA.

10:45 112 Relationships among North American songbird trends, habitat fragmentation, and landscape occupancy.  THERESE M. DONOVAN, USGS Vermont Coop. Fish & Wildl. Res. Unit, Burlington, VT, and CURTIS FLATHER, USDA For. Serv. Rocky Mountain Res. Sta., Fort Collins, CO.

11:00 113 Avian community response to intensive Red-cockaded Woodpecker habitat management.  DOUGLAS R. WOOD, L. WES BURGER Jr., Dept. Wildl. & Fish., Mississippi State Univ., Starkville, MS; and JACOB L. BOWMAN, Dept. Entom. & Appl. Ecol., Univ. Delaware, Newark, DE.

11:15 114 *Context-dependent edge effects on coastal sage scrub birds.  THOMAS M. UNFRIED, Dept. Biol., Univ. California, Riverside, CA.

11:30 115 Edge effects, landscape context, and regional population viability of Wood Thrushes.  MELANIE J. L. DRISCOLL and THERESE M. DONOVAN, USGS Vermont Coop. Fish & Wildl. Res. Unit, Burlington, VT.

11:45 116 Spatial autocorrelation of bird populations in fragmented forests:  implications for metapopulation dynamics.  TROY E. WILSON and THOMAS A. WAITE, Dept. Evol. Ecol. & Organ. Biol., Ohio State Univ., Columbus, OH.

12:00 117 Effects of forest fragmentation on reproductive success, annual returns, and age distribution of male Ovenbirds in an eastern Pennsylvania landscape, 1989 to 2001.  LAURIE J. GOODRICH, Hawk Mountain Sanctuary Assoc., Kempton, PA; MARGARET C. BRITTINGHAM, Pennsylvania State Univ., University Park, PA, CATHERINE B. VIVERETTE, Miller's Tavern, VA; and JAMES C. BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR.

12:15 118 Riparian songbird abundance a decade after cattle removal from high desert riparian habitats.  SUSAN L. EARNST, USGS For. & Range. Ecosys. Sci. Center, Boise, ID; JENNIFER A. BALLARD, Hart Mountain Natl. Antelope Refuge, Plush, OR; and DAVID S. DOBKIN, High Desert Ecol. Res. Inst., Bend, OR.

Session 4E (Pontalba).  Migration.  Richard O. Bierregaard, chair.

10:30 119 Pre-migratory movements of Ospreys in southern New England.  RICHARD O. BIERREGAARD, Biol. Dept., Univ. North Carolina, Charlotte, NC, and MARK S. MARTELL, The Raptor Center, Univ. Minnesota, St. Paul, MN.

10:45 120 Using plasma metabolite concentrations as an index for stopover site habitat quality for migrating Western Sandpipers.  DANA A. SEAMAN, TONY D. WILLIAMS, Biol. Sci., Simon Fraser Univ., Burnaby, BC, and CHRISTOPHER G. GUGLIELMO, Univ. Montana, Missoula, MT.

11:00 121 Use of urban habitats by passage migrants in New Orleans, Louisiana.  PETER H. YAUKEY, Dept. Geog., Univ. New Orleans, New Orleans, LA.

11:15 122 Operation RubyThroat:  The Hummingbird Project.  BILL HILTON, Jr., Hilton Pond Center for Piedmont Nat. Hist., York, SC.

11:30 123 Endogenous control of migration and influence of photoperiod in an  intratropical migrant, the Yellow-green Vireo.  JOHN D. STYRSKY, Dept.  Biol. Sci., Auburn Univ., Auburn, AL; and PETER BERTHOLD, Max Planck Centre for Ornithology, Radolfzell, Germany.

11:45 124 Importance of landscape context in identifying high-use stopover habitat.  ROBERT H. DIEHL, Dept. Animal Biol., Univ. Illinois, Urbana, IL.

12:00 125 Snowy Owl annual movements:  north-south, east-west.  M. FULLER, USGS, Boise ID; N. SMITH, Massachusetts Audubon Soc., Milton, MA; D. HOLT, Owl Research Inst., Missoula, MT; L. SCHUECK, USGS Boise, ID; K. BATES, Raptor Research Ctr., Boise State Univ., ID, and L. NIABI-WESTCOTT, Massachusetts Soc., Milton, MA.

12:15 126 Factors governing Little Stint migration at Eilat, Israel.  REUVEN YOSEF, Internatl. Birding & Res. Center in Eilat, Eilat, Israel, PRZEMEK CHYLARECKI, Inst. Ecol., Polish Acad. Sci., Gdansk, Poland, and PIOTR TRYJANOWSKI, Dept. Avian Biol. & Ecol., Adam Mickiewicz Univ., Poznan, Poland.

Session 4H (Vieux Carré - B).  Census methods.  Kathryn L. Purcell, chair.

10:30 127 The North American Raptor Monitoring Strategy.  M. FULLER, U.S. Geol. Surv., Boise, ID, and K. BATES, Raptor Res. Center, Boise State Univ., Boise, ID.

10:45 128 Sample size adequacy for monitoring birds in California oak woodlands using point counts.  KATHRYN L. PURCELL, USDA For. Serv., Pacific Southwest Res. Sta., Sierra Nevada Res. Center, Fresno, CA, SYLVIA R. MORI , USDA For. Serv., Pacific Southwest Res. Sta., Albany, CA, and MARY K. CHASE, Point Reyes Bird Observ., Stinson Beach, CA.

11:00 129 Estimating density from point-count surveys:  theory with applications.  GEORGE L. FARNSWORTH, Dept. Nat. Sci., Univ. Houston-Downtown, TX, SUSAN A. SHRINER, KENNETH H. POLLOCK, THEODORE R. SIMONS, Dept. Zool., North Carolina State Univ., Raleigh, NC, JOHN R. SAUER and JAMES D. NICHOLS, Patuxent Wild. Res. Center, Laurel, MD.

11:15 130 How closely do we estimate numbers of birds?  controlled measurement of interobserver error in counting birds.  REBECCA A. HYLTON, PETER C. FREDERICK and JULIE A. HEATH, Dept. Wildl. Ecol. & Conserv., Univ. Florida, Gainesville, FL.

11:30 131 Trend estimation using a linear model.  JONATHAN BART, USGS For. & Range. Ecosys. Sci. Center, Boise, ID; BRIAN COLLINS and R. I. G. MORRISON, Canadian Wildl. Serv., Hull, PQ.

11:45 132 Monitoring Red-shouldered Hawk populations:  evaluation of available data and the potential for improved approaches.  JOELLE L. GEHRING, Dept. For. & Nat. Res., Purdue Univ., West Lafayette, IN, JAMES C. BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR, and MICHAEL D. McCRARY, Dept. Interior, Newbury Park, CA.

12:00 133 Point count efficiency and nesting success in marsh birds.  DOUGLAS C. TOZER, Dept. Biol., Trent Univ., Peterborough, ON.

12:15 134 *Does variation in female arrival date bias count data in migratory songbirds?  BRETT L. WALKER, Wildl. Biol. Prog., School For., Univ. Montana, Missoula, MT.

Session 4J (Poydras).  Woodpecker biology.  Rita D. Dixon, chair.

10:30 135 Patterns of brood reduction in Red-cockaded Woodpeckers support the egg insurance hypothesis.  JAMES R. McCORMICK, Dept. Biol., Stephen F. Austin State Univ., Nacogdoches, TX; RICHARD N. CONNER, Southern Res. Sta., Nacogdoches, TX; D. BRENT BURT, Dept. Biol., Stephen F. Austin State Univ.; and DANIEL SAENZ, Southern Res. Sta.

10:45 136 Influence of burn edges on nesting success of Lewis's Woodpecker.  STEPHEN C. ABELE, EDWARD O. GARTON, Dept. Fish & Wildl. Res., Univ. Idaho, Moscow, ID; and VICTORIA A. SAAB, USDAFS, Rocky Mountain Res. Sta., Boise, ID.

11:00 137 Reproductive effort and parasite resistance in the Red-bellied Woodpecker.  MATTHEW S. SCHRADER, Dept. Biol. Sci., Florida State Univ., Tallahassee, FL.

11:15 138 A survival and sensitivity analysis of White-headed Woodpeckers.  RITA D. DIXON, Dept. Fish & Wildl. Res., Univ. Idaho, Moscow, ID.

11:30 139 Influence of groundcover on Red-cockaded Woodpecker prey base.  BRANDON TAYLOR and JEFF WALTERS, Biol. Dept., Virginia Tech, Blacksburg, VA.

11:45 140 Cell-mediated immune development in passerine cavity-nesting birds in the wild.  JEANNE M. FAIR and CARRIE E. TALUS, Los Alamos Natl. Lab., Environ. Dynam. & Spatial Anal., Los Alamos, NM.

12:00 141 Factors influencing natal dispersal distance in Red-cockaded Woodpeckers.  GILBERTO PASINELLI, Zool. Inst., Univ. Zurich, Zurich, Switzerland, and JEFFREY R. WALTERS, Dept. Biol., Virginia Tech, Blacksburg, VA.

12:15 142 Fitness costs of natal dispersal in Red-cockaded Woodpeckers.  KARIN SCHIEGG, GILBERTO PASINELLI, Zool. Inst., Univ. Zurich, Zurich, Switzerland, and JEFFREY R. WALTERS, Dept. Biol., Virginia Tech, Blacksburg, VA.

12:30  Lunch Break; for options see FOOD section, p. 6 above

Session 5F (LaSalle - B).  Breeding biology.  Leonard A. Freed, chair.

14:00 143 *Factors affecting nest success of songbirds in riparian corridors.  REBECCA G. PEAK, Dept. Fish. & Wildl. Sci., Univ. Missouri, Columbia, MO, and  FRANK R. THOMPSON, III, USDA For. Serv., North Central Res. Sta., Columbia, MO.

14:15 144 *Individual quality and experimental increases in reproductive effort affect primary and acquired immunity in Tree Swallows.  DANIEL R. ARDIA, Dept. Ecol. & Evol. Biol., Cornell Univ., Ithaca, NY.

14:30 145 *Nest desertion in response to partial clutch loss:  a manipulative study.  JASON C. JOHNSTON, Dept. Biol., Univ. Maine, Orono, ME.

14:45 146 *Parentage and parental effort in Blue-tailed Bee-eaters.  PRISCILLA F. COULTER, D. BRENT BURT, Stephen F. Austin State Univ., Nacogdoches TX, HSIAO-WEI YUAN and LI-PING WANG, Natl. Taiwan Univ., Taipei Taiwan.

15:00 147 Breeding biology of Swainson's Warblers in a managed South Carolina bottomland.  JENNIFER L. THOMPSON, Dept. Zool., North Carolina State Univ., Raleigh, NC; RICHARD A. LANCIA, Dept. For., North Carolina State Univ.; and JOHN A. GERWIN, North Carolina State Mus. Nat. Sci., Raleigh, NC.
15:15 148 Molting and breeding decisions in Hawaiian honeycreepers.  LEONARD A. FREED, Dept. Zool., Univ. Hawaii, Honolulu, HI.

Session 5C (Cabildo).  Foraging.  Patrick G. R. Jodice, chair.

14:00 149 Foraging conservatism and plasticity of bird species associated to Polylepis woodlands in the Peruvian Andes:  implications for assemblage organization. GRACE P. SERVAT, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO.

14:15 150 Impacts of herbicides and fertilizers on quail chick food supplies and growth rates.  JESSICA M. BROUSSARD, JEFFREY P. DUGUAY and JIMMIE L. YEISER, Arthur Temple Coll. For., Stephen F. Austin State Univ., Nacogdoches, TX.

14:30 151 Variability in parental effort of Black-legged Kittiwakes as a consequence of prey resources and time-activity budgets.  PATRICK G. R. JODICE, U.S. Fish & Wildl. Serv., Portland, OR; and DANIEL D. ROBY, Oregon Coop. Fish & Wildl. Res. Unit, Corvallis, OR.

14:45 152 European Starlings prefer the fruits of invasive plants.  NANCY LaFLEUR, Dept. Ecol. & Evol. Biol., Univ. Connecticut, Storrs, CT.

15:00 153 Distribution of foraging shearwaters with respect to the inner front of the southeastern Bering Sea.  JAIME JAHNCKE, Dept. Ecol. & Evol. Biol., Univ. California, Irvine, CA, K. DAVID HYRENBACH, Scripps Inst. Oceanography, La Jolla, CA, CHERYL L. BADUINI, Univ. California, Irvine, CA, KENNETH O. COYLE, Univ. Alaska, Fairbanks, AK, and GEORGE L.HUNT, Univ. California, Irvine, CA.

15:15 154 A test of the prey size hypothesis on the numerical response of wading birds in the Everglades.  DALE E. GAWLIK, Everglades Div., South Florida Water Manage. Dist., West Palm Beach, FL.

Session 5D (Pan-Am Auditorium).  Warbler biology.  Matthew R. Marshall, chair.

14:00 155 Breeding site-fidelity of a migratory songbird:  implications for annual survival estimation.  MATTHEW R. MARSHALL, For. Res., Pennsylvania State Univ., University Park, PA; DUANE R. DIEFENBACH, USGS Pennsylvania Coop. Fish & Wildl. Res. Unit, Pennsylvania State Univ., LARRY A. WOOD and ROBERT J. COOPER, For. Res., Univ. Georgia, Athens, GA.

14:15 156 The geography of age ratios in hybridizing warblers.  SIEVERT ROHWER, Burke Mus. and Dept. Zool., Univ. Washington, Seattle, WA.

14:30 157 Relative abundance and demography of Black-throated Blue Warblers in heavily and less deer-browsed northern forests.  KIMBERLY R. HALL, School Nat. Res. & Environ., Univ. Michigan, Ann Arbor MI.

14:45 158 Habitat characteristics and conservation of Swainson's Warbler nest in bottomland hardwood forests of southeastern Oklahoma.  MICHAEL L. ADAMS,  Dept. Biol. Sci., Univ. Arkansas, Fayetteville, AR.

15:00 159 *Factors influencing double brooding in Black-throated Blue Warblers.  LAURA R. NAGY and RICHARD T. HOLMES, Dept. Biol. Sci., Dartmouth Coll., Hanover, NH.

15:15 160 Estimates of annual survivorship for Kirtland's Warblers:  a case for habitat management on the breeding grounds.  CAROL BOCETTI, USGS Patuxent Wildl Res. Center, California, PA; PAUL W. SYKES, Jr., CAMERON B. KEPLER, USGS Patuxent Wildl. Res. Center, Athens, GA; JONATHAN BART, USGS Snake River Field Sta., Boise, ID, and JOHN PROBST, USFS Northcentral Forest Exp. Sta., Rhinelander, WI.

Session 5E (Pontalba).  Migration.  Ronald P. Larkin, chair.

14:00 161 Effects of synoptic weather patterns on diurnal raptor migration in New Jersey.  DAVID S. MIZRAHI and VINCENT J. ELIA, New Jersey Audubon Soc./Cape May Bird Observ., Cape May Court House, NJ.

14:15 162 Orientation by Canada Geese during fall migration.  RONALD P. LARKIN, Center Wildl. Ecol., Illinois Nat. Hist. Surv., Champaign, IL.

14:30 163 Orientation of Chiffchaff, Blackcap and Lesser White-throat on spring migration at Eilat, Israel.  REUVEN YOSEF, Internatl. Birding & Res. Center in Eilat, Eilat, Israel, AGNIESZKA TROCINSKA and PRZEMYSLAW BUSSE, Bird Migration Res. Sta., Univ. Gdansk, Przebendowo, Choczewo, Poland.

14:45 164 Microbes in the plumage of Neotropical migrants:  long distance dispersal of microorganisms?  KATE E. WILLIAMSON, BENJAMIN T. LAWRENCE, Dept. Zool., Ohio Wesleyan Univ., Delaware, OH, JANN M. ICHIDA, Dept. Bot./Micro., Ohio Wesleyan Univ., and EDWARD H. BURTT, Jr., Dept. Zool.

15:00 165 Sustained travel rates of migrating Western Sandpipers.  NILS WARNOCK, Point Reyes Bird Observ., Stinson Beach, CA; MARY ANNE BISHOP, Prince William Sound Sci. Center, Cordova, AK; and JOHN Y. TAKEKAWA, BRD, USGS, Vallejo, CA.

15:15 166 Re-sightings of Peregrine Falcons color-banded on the Washington coast.  DANIEL E. VARLAND, Hoquiam, WA.

Session 5H (Vieux Carré - B).  Conservation.  Ted Simons, chair.

14:00 167 Conservation implications for early successional breeding birds on managed pine plantations in southeastern Louisiana.  LYNN M. DUDA and PHILIP C. STOUFFER, Dept. Biol. Sci., Southeastern Louisiana Univ., Hammond, LA.

14:15 168 Avian assemblage composition and diversity of grassland birds wintering in northern Mexico:  influence of land management practices.  M. DESMOND,
Dept. Fish. & Wildl. Sci., New Mexico State Univ., Las Cruces, NM; A. LAFON, Facultad de Zootechnia, Universidad Autonoma de Chihuahua, Chihuahua, Mexico, and F. CHAVEZ-RAMIREZ, Platte River Trust, Gand Island, NE.

14:30 169 Stable isotopes provide evidence for poor Northern Pintail production on the Canadian Prairies.  CRAIG E. HEBERT, Canadian Wildl. Serv., Natl. Wildl. Res. Centre, Hull, PQ; LEONARD I. WASSENAAR, Natl. Hydrol. Res. Centre, Saskatoon, SK; and KEITH A. HOBSON, Canadian Wildl. Serv., Prairie & Northern Wildl. Res. Centre, Saskatoon, SK.

14:45 170 Avian response to nutrient loading in an oligotrophic wetland.  GAEA E. CROZIER and DALE E. GAWLIK, S. Florida Water Manage. Dist., West Palm Beach, FL.

15:00 171 Development of a strategy for adaptive harvest management of American Black Ducks.  CHRISTOPHER J. FONNESBECK, MICHAEL J. CONROY and NATHAN L. ZIMPFER, Georgia Coop. Fish & Wildl. Res. Unit, Univ. Georgia, Athens, GA.

15:15 172 Forest bird communities on managed and unmanaged landscapes in the southern Appalachians.  TED SIMONS, North Carolina Coop. Fish & Wildl. Res. Unit,  Dept. Zool., North Carolina State Univ., Raleigh, NC.

Session 5J (Poydras).  Vocalizations.  R. L. Curry, chair.

14:00 173 *Neighbor-

stranger discrimination in a suboscine, the Alder Flycatcher.  SCOTT F. LOVELL, Dept. Biol. Sci., Univ. Calgary, Calgary, AB.

14:15 174 *How Nearctic and intratropical migration shape dawn song and morphology in the New World. ISABELLE-ANNE BISSON, BRIDGET J.STUTCHBURY, Dept. Biol., York Univ., ON, and STEPHEN LOUGHEED, Dept. Biol., Queen's Univ., Kingston, ON.

14:30 175 *Alarm calling in a Sri Lankan mixed-
 

species flock system.  EBEN GOODALE, Organ. & Evol. Biol., Univ. Massachusetts, Amherst, MA.

14:45 176 Patterns and implications of aberrant singing behaviors of Black-capped and Carolina Chickadees in Illinois.  P. CAESAR ENSTROM and ERIC K. BOLLINGER, Biol. Sci. Dept., Eastern Illinois Univ., Charleston, IL.

15:00 177 Type I song populations in Hermit Warblers:  song characteristics, geographic distribution and inter-population response.  STEWART W. JANES and LEE RYKER, Dept. Biol., Southern Oregon Univ., Ashland, OR.

15:15 178 Mismatched songs and calls among hybridizing Black-capped and Carolina chickadees.  R. L. CURRY and L. M. ROSSANO, Dept. Biol., Villanova Univ., Villanova, PA.

Session 5G (LaSalle - C).  Miscellaneous. Gary R. Hepp, chair.
 

14:00 179 The overestimation of speciation times in modern birds.  NED K. JOHNSON, Mus. Vert. Zool. and Dept. Integrative Biol., Univ. Calif., Berkeley, CA and CARLA CICERO, Mus. Vert. Zool., Univ. Calif. Berkeley, CA.

14:15 180 Sources of UV variation in museum study skins.  MUIR D. EATON, Dept. Ecol. Evol. & Behav., Univ. Minnesota, St. Paul, MN.

14:30 181 Interpreting immunomodulation in birds:  an ecotoxicological context.  JUDIT E. SMITS, Vet. Pathol., Univ. Saskatchewan, Saskatoon, SK, and GARY R. BORTOLOTTI, Biol. Dept., Univ. Saskatchewan.

14:45 182 A tangerine-scented pheromone in a monogamous seabird.  JULIE C. HAGELIN, Dept. Biol., Swarthmore Coll., Swarthmore, PA; IAN L. JONES, Dept. Biol., Memorial Univ. Newfoundland, St. John's, NF; and L. E. L. RASMUSSEN, Dept. Biochem. & Molec. Biol., Oregon Graduate Inst., Beaverton, OR.

15:00 183 Landscape analysis of Mexican Spotted Owl nest and roost sites in central Arizona.  CHRISTOPHER A. MAY and R. J. GUTIÉRREZ, Dept. Fish., Wildl. & Cons. Biol., Univ. Minnesota, St. Paul, MN.

15:15 184 Species richness in a lowland forest understory of Ecuador:  preliminary results from mist nets.  JOHN G. BLAKE and BETTE A. LOISELLE, Dept. Biol. and Intl. Ctr. Trop. Ecol., Univ. Missouri, St. Louis, MO.

3:30  Refreshment Break, Hotel Inter-Continental, Third Floor

Session 6C (Cabildo).  Evolution.  Jennifer Gee, chair.

16:00 185 *Covey formation contributes to heterospecific pairing in hybridizing California and Gambel's Quail.  JENNIFER GEE, Dept. Ecol. & Evol. Biol., Princeton, Univ., Princeton, NJ.

16:15 186 *Size dimorphism and sexual selection across bird species:  a nonlinear relationship.  SUHEL QUADER, KAVITA ISVARAN and REBECCA HALE, Dept. Zool., Univ. Florida, Gainesville, FL.

16:30 187 Making a mimetic nestling:  how do African finches (Estrildidae) do it?  JUSTIN G. SCHUETZ, Ecol. & Evol. Biol., Cornell Univ., Ithaca, NY.

16:45 188 *Evolution of ecological differences:  Neotropical tanagers of the genus Tangara (Thraupidae).  KAZUYA NAOKI, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA; and KEVIN J. BURNS, Dept. Biol., Sand Diego State Univ., San Diego, CA.

Session 6D (Pan-Am Auditorium).  Warbler biology.  Petra Bohall Wood, chair.

16:00 189 *Seasonal increase in nest predation rates for a ground-nesting warbler.  PAULINE K. ROBERTS, Ecol. & Evol. Biol., Dartmouth Coll., Hanover, NH, and PETER P. MARRA, Smithsonian Environ. Res. Center, Edgewater, MD.

16:15 190 *Core area habitat selection and use within breeding territories of male Cerulean Warblers.  JENNIFER J. BARG, Dept. Biol., Queen's Univ., Kingston, ON; JASON JONES, Dartmouth Coll., Hanover, NH; and RALEIGH J. ROBERTSON, Dept. Biol., Queen's Univ.

16:30 191 Factors influencing Cerulean Warbler territory density in southern West Virginia.  PETRA BOHALL WOOD and CATHY A. WEAKLAND, USGS/BRD West Virginia Coop. Fish & Wildl. Res. Unit and Div. For., West Virginia Univ., Morgantown, WV.

16:45 192 Evaluating the population status of Ovenbird in Great Smoky Mountains National Park.  ANDREI L. PODOLSKY, THEODORE R. SIMONS and JAIME A. COLLAZO, North Carolina Coop. Fish & Wildl. Res. Unit, Zool. Dept., North Carolina State Univ., Raleigh, NC.

Session 6E (Pontalba).  Ecology. Clinton W. Jeske, chair.

16:00 193 A New Zealand island in change:  21 years of landbird populations affected by  succession, predator control, and weather.  C. JOHN RALPH, CAROL PEARSON RALPH and TERESA MATSUMOTO, USDA For. Serv., Redwood Sci. Lab, Arcata, CA.

16:15 194 Two decades of change in a coastal scrub community:  songbird responses to plant succession and the role of disturbance.  ARRON L. HOLMES, MARY K. CHASE, GRANT BALLARD, THOMAS GARDALI, GEOFFREY R. GEUPEL and NADAV NUR, Point Reyes Bird Observ. Conserv. Sci., Stinson Beach, CA.

16:30 195 Swainson's Hawk adaptation to, and dependence on, specific agricultural practices and crop types in California's Central Valley.  MICHAEL A. BRADBURY, Swainson's Hawk Tech. Advisory Comm., Sacramento, CA.

16:45 196 Scale dependency in habitat selection by cavity nesting birds in Fishlake National Forest, Utah.  RANDALL J. SCHULTZ, Jr., Dept. Fish. & Wildl. and Ecology Center, Utah State Univ., Logan, UT; THOMAS C. EDWARDS, Jr., USGS Biol. Res. Div., Utah Coop. Fish & Wildl. Res. Unit, Utah State Univ., Logan, UT; GRETCHEN G. MOISEN and TRACEY S. FRESCINO, USDA For. Serv., Rocky Mountain Res. Sta., Ogden, UT.

Session 6F (LaSalle - B).  Conservation.  Juan E. Martínez-Gómez, chair.

16:00 197 Piping Plover recolonization potential in the Great Lakes:  assessment of historic habitat.  ELIZABETH W. PRICE, Cons. Biol. Prog., Univ. Minnesota, St. Paul, MN, and FRANCESCA J. CUTHBERT, Dept. Fish. & Wildl., Univ. Minnesota.

16:15 198 The recovery program for the Socorro Dove.  JUAN E. MARTÍNEZ-GÓMEZ, Dept. Biol., Univ. Missouri, Saint Louis MO, and STEFAN STADLER, Zoological Gardens, Frankfurt, Germany.

16:30 199 Breeding productivity in shaded coffee plantations:  could plantations have served as refugia in Puerto Rico?  JAIME A. COLLAZO and MARTHA J. GROOM, North Carolina Coop. Fish & Wildl. Res. Unit, North Carolina State Univ., Raleigh, NC.

Session 6G (LaSalle - C).  Miscellaneous. William I. Boarman, chair.

16:00 200 Density and habitat use of a Swainson's Warbler breeding population at Bond Swamp National Wildlife Refuge, Georgia.  J. MICHAEL MEYERS, USGS Patuxent Wildl. Res. Center, Univ. Georgia, Athens, GA, and ELIZABETH A. WRIGHT, Warnell School For. Res., Univ. Georgia, Athens, GA.

16:15 201 Intersexual differences in migratory restlessness of a flocking intercontinental migrant, the Eastern Kingbird.  SARAH E. MABEY, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

16:30 202 Nesting and post-fledging ecology of Loggerhead Shrikes in northeastern and central Arkansas.  JENNIFER L. NORRIS, CHRIS KELLNER, Dept. Biol. Sci. Fish & Wildl. Prog., Arkansas Tech Univ., Russellville, AR, and JAMES BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., State University, AR.

Session 6H (Vieux Carré - B).  Physiology.  Jonathan D. Maul, chair.

16:00 203 *Teaching an old bird new tricks:  does telomere length increase with age in long-lived birds?  MARK F. HAUSSMANN, Ecol. Evol. Biol., Iowa State Univ., Ames, IA; DAVID W. WINKLER, Dept. Ecol. Evol. Biol., Cornell Univ., Ithaca, NY; KATHLEEN M. O'REILLY, Dept. Biol., Univ. Portland, Portland, OR; CHUCK E. HUNTINGTON, Harpswell, ME; and CAROL VLECK, Ecol. Evol. Biol., Iowa State Univ

16:15 204 *Cloacal microbial flora in breeding and wintering birds:  overall prevalence and relationship to condition index, fluctuating asymmetry, and habitat.  JONATHAN D. MAUL, JAGRUTI P. GANDHI and JERRY L. FARRIS, Environ. Sci. Prog., Arkansas State Univ., State University, AR.

16:30 205 Evaluating the effects of selenium on populations of Red-winged Blackbirds and American Robins in southeast Idaho.  ROBYN P. VASTERLING, EDWARD O. GARTON and JOHN T. RATTI, Dept. Fish & Wildl. Res., Univ. Idaho, Moscow, ID.

16:45 206 *Determining the time lag for nutrient incorporation into natal feathers:  implications for feather sampling for isotope analysis.  J. M. DUXBURY, Dept. Renew. Res., Univ. Alberta, Edmonton, AB;  G. L.  HOLROYD, Canadian Wildl. Serv., Environment Canada, Edmonton, AB; and K. MUEHLENBACHS, Dept. Earth & Atmospheric Sci., Univ. Alberta, Edmonton, AB.

Session 6I (Vieux Carré - A).  Miscellaneous. Scott Seeby, chair.

16:00 207 Avifaunistic variation along a gradient of coffee agroecosystem simplification.  CALEB GORDON, Dept. Biol., Lake Forest College, Lake Forest, IL.

16:15 208 Historic vs. current populations of an abundant species:  are there too many Double-crested Cormorants?  LINDA R. WIRES and FRANCESCA J. CUTHBERT, Dept. Fish, Wildl. & Cons. Bio., Univ. Minnesota, St. Paul, MN.

16:30 209 Raptor electrocution on power lines:  problem assessment, mitigation, and  monitoring.  ROBERT N. LEHMAN, U.S. Geol. Surv., For. & Range.  Ecosys. Sci. Center, Snake River Field St., Boise, ID; PATRICIA L. KENNEDY, Oregon  State Univ., Union Exp. St., Union, OR; and JULIE A. SAVIDGE, Dept. Fish. & Wildl. Biol., Colorado State Univ., Fort Collins, CO.

16:45 210 Feeding strategies of the Loggerhead Shrike:  experiments with a wild shrike.  SUMITA PRASAD, Gulf Coast Bird Observatory, Lake Jackson, TX; and GEORGE L. FARNSWORTH, Dept. Nat. Sci., Univ. Houston-Downtown, Houston, TX.

Session 6J (Poydras).  Shrike biology.  Jonathan Plissner, chair.

16:00 211 Cage design and considerations used for releasing the endangered San Clemente Loggerhead Shrikes into the wild.  DON L. BRUBAKER and JENNIFER M. TURNER, Inst. Wildl. Stud., San Diego, CA.

16:15 212 Post-release survival of captive-reared San Clemente Loggerhead Shrikes:  a federally endangered subspecies.  ERIC L. KERSHNER, DON L. BRUBAKER, JENNIFER M. TURNER, Inst. Wildl. Stud., San Diego, CA; JONATHON PLISSNER, Point Reyes Bird Observatory, Stinson Beach, CA; and DAVID K GARCELON, Inst. Wildl. Stud., Arcata, CA.

16:30 213 Survivorship and productivity of supplementally fed and non-supplementally fed San Clemente Loggerhead Shrikes.  JENNIFER M. TURNER, DON L. BRUBAKER, ERIC L. KERSHNER, Inst. Wildl. Stud., San Diego, CA; JONATHAN PLISSNER, Point Reyes Bird Observ., Stinson Beach, CA.; and DAVE GARCELON, Inst. Wildl. Stud., Arcata, CA.

16:45 214 Demographic variation and supplementation of the wild population as factors associated with population increases in San Clemente Loggerhead Shrikes.  JONATHAN PLISSNER, NILS WARNOCK, HEATHER CARLISLE, ASHLEIGH BLACKFORD, Point Reyes Bird Observ., Stinson Beach, CA, ERIC L. KERSHNER, Inst. Wildl. Stud., San Diego, CA; JEFFREY OPDYCKE, Zool. Soc. San Diego, San Diego, CA; and KELLY BROCK, US Navy, Navy Region Southwest, San Diego, CA.

18:30  Picnic, House of Blues, Decatur St. in French Quarter

08:00  Continental Breakfast, Hotel Inter-Continental, Third Floor

09:00 Plenary 3 (LaSalle BC; and video feed to Pan-Am Auditorium for overflow crowd). Twenty-five primary evolutionary insights from the phylogeographic revolution in population genetics.  JOHN C. AVISE, Dept. Genetics, Univ. Georgia, Athens, GA.

10:00  Coffee Break, Hotel Inter-Continental, Third Floor

Symposium L (Vieux Carré - B).  Conservation and ecology of disturbance-dependent birds.  F. R. Thompson III & J. Brawn, organizers.

10:30 S088 Loss of natural disturbances and the decline of early successional birds in the deciduous forests of eastern United States and Japan.  ROBERT A. ASKINS, Dept. Zool., Connecticut Coll., New London, CT.

10:45 S089 Fire cycle and source-sink dynamics of Florida Scrub-Jays on the Lake Wales Ridge.  JOHN W. FITZPATRICK, Cornell Lab. Ornithol., Ithaca, NY, GLEN E. WOOLFENDEN and REED BOWMAN, Archbold Biol. Sta., Lake Placid, FL.

11:00 S0S0 Effects of fire regime on birds in vegetation communities of the southeastern U.S.  R. TODD ENGSTROM, Tall Timbers Res. Sta., Tallahassee, FL.

11:15 S091 The role of disturbance in the ecology and conservation of Red-cockaded Woodpeckers.  JEFFREY R. WALTERS, Dept. Biol., Virginia Tech, Blacksburg, VA.

11:30 S092 Viability of shrubland birds in natural and managed forest habitats in central hardwoods landscapes.  ALIX D. FINK, Dept. Nat. Sci., Longwood Coll., Farmville, VA; and FRANK R. THOMPSON, III, USDA For. Serv., North Central Res. Sta., Columbia, MO.

11:45 S093 The role of disturbance in the ecology and conservation of the endangered Black-capped Vireo.  JOSEPH GRZYBOWSKI, Coll. Math. Sci., Univ. Central Oklahoma, Edmond, OK and Sam Noble Oklahoma Mus. Nat. Hist., Norman, OK; CHIP KIMBALL, Wichita Mountains Wildl. Refuge, USFWS, Indiahoma, OK; LAURA SANCHEZ, DAVID CIMPRICH, The Nature Conservancy of Texas, San Antonio, TX; and JOHN CORNELIUS, Fort Hood Mil. Res., U.S. Army, Killeen, TX.

12:00 S094 Demographics of Chestnut-sided Warblers in relation to forest disturbance and succession in the Northeast.  DAVID I. KING and RICHARD M. DeGRAAF, Northeastern Res. Sta., Amherst, MA.

12:15 S095 Extirpation of Golden-winged Warblers:  habitat loss and/or hybridization?  JOHN L. CONFER, Biol. Dept., Ithaca Coll., Ithaca, NY.

12:30 S096 How does disturbance affect populations and communities of birds?  JEFFREY D. BRAWN, Dept. Nat. Res. Env. Sci., Univ. Illinois at Urbana-Champaign, Champaign, IL; SCOTT K. ROBINSON, Dept, Anim. Biol., Univ. Illinois at Urbana-Champaign,  and FRANK R. THOMPSON III, North Cent. For. Exp. Sta., Columbia, MO.

Symposium M (Vieux Carré - A).  Problems and opportunities in avian deep phylogenetics.  J. Harshman & A. Driskell, organizers.

10:30 S097 Avian phylogenetics from beginning to end and top to bottom:  the challenges never change.  JOEL CRACRAFT, Am. Mus. Nat. Hist., New York, NY.

11:00 S098 Congruent avian phylogenies from mt and nuclear genes:  differences in evolutionary models.  DAVID P. MINDELL, JAIME GARCIA-MORENO, Mus. Zool. and Dept. Biol., Univ. Michigan, Ann Arbor, MI, and MICHAEL SORENSON, Dept. Biol., Boston Univ., Boston, MA.

11:15 S099 Base composition heterogeneity in avian exons and phylogenetic inference.  GEORGE F. BARROWCLOUGH, JEFF G. GROTH and F. KEITH BARKER, Am. Mus. Nat. Hist., New York, NY.

11:30 S100 Identifying G+C bias and the effect on phylogeny reconstruction.  ALLAN J. BAKER, OLIVER HADDRATH and TARA A. PATON, Dept. Ornithol., Royal Ontario Mus., Toronto, ON.

11:45 S101 Remembering early neornithine evolution, introns versus exons.  WILLIAM S. MOORE, Dept. Biol. Sci., Wayne State Univ., Detroit, MI.

12:00 S102 Using indel characters to infer phylogeny.  JOHN HARSHMAN, San Jose, CA.

12:15 S103 Assessing the phylogenetic information content of the Genbank database:  how data mining can inform avian phylogenetics.  AMY DRISKELL, Ctr. Pop. Biol., Univ.  California, Davis, CA;  RICK REE, Dept. Evol. & Ecol., Univ. California, Davis, CA; and MIKE SANDERSON, Ctr. Pop. Biol., Univ.  California, Davis, CA.

Session 7B (LaSalle - BC).  Ecology.  Heather M. Swanson, chair.

10:30 215 *Survival and habitat use of wild Northern Bobwhite at Camp Robinson Wildlife Demonstration Area.  STEVEN C. FOWLER, JAMES C. BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR; CHRIS KELLNER and MATTHEW D. LEWIS, Dept. Biol., Arkansas Tech Univ., Russellville, AR.

10:45 216 A 14-year assessment of landscape sensitivity by forest songbirds of Ontario.  ANDRÉ DESROCHERS, For. & Geomatics (CRBF), Univ. Laval, Québec, PQ; VÉRONIQUE ST-LOUIS, Forest Bird Monitoring Prog. (FBMP), Canadian Wildl. Serv., Nepean, ON; MIKE CADMAN, Ontario Breeding Bird Atlas, Univ. Guelph, Guelph, ON; HEATHER J. DEWAR and DANIEL WELSH, FBMP, Canadian Wildl. Serv., Nepean, ON.

11:00 217 *The response of ponderosa pine forest birds to differing forest structure along the Colorado Front Range.  HEATHER M. SWANSON, ALEXANDER CRUZ, Dept. EPO Biol., Univ. Colorado, Boulder, CO, JOHN W. PRATHER, Northern Arizona Univ., Flagstaff, AZ, and JAMESON F. CHACE, Villanova Univ., Villanova, PA.

11:15 218 *Habitat partitioning among wintering grassland passerines in a Texas Mid-Coastal Prairie.  DAMION E. MARX and SALLIE J. HEJL, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX.

11:30 219 *Current and presettlement location of closed-canopy forest habitat in Holly Springs National Forest:  implications for songbird conservation and fire management.  STEVEN M. AQUILANI, Dept. Biol., Delaware Co. Coll., Media, PA, and J. STEPHEN BREWER, Dept. Biol., Univ. Mississippi, University, MS.

11:45 220 *The nature of multiple edge effects on bird distributions.  ROBERT J. FLETCHER, Jr., Iowa Coop. Fish & Wildl. Res. Unit, Dept. Animal Ecol., Iowa State Univ., Ames, IA, and ROLF R. KOFORD, USGS-BRD, Iowa Coop. Fish & Wildl. Res. Unit, Iowa State Univ.

12:00 221 *Impact of habitat degradation on birds breeding in the life zone of tropical dry forests of southern Jamaica.  LEO R. DOUGLAS, Univ. West Indies, Jamaica, T. W. SHERRY, Tulane Univ., New Orleans, LA, and PETER VOGEL, Univ. West Indies, Jamaica.

12:15 222 *Spatiotemporal variability of breeding birds in an undisturbed northern hardwoods forest.  PATRICK J. DORAN and RICHARD T. HOLMES, Dept. Biol. Sci., Dartmouth Coll., Hanover, NH.

Session 7C (Cabildo).  Breeding Biology.  James W. Rivers, chair.

10:30 223 Evaluation of a reproductive index to estimate Dickcissel reproductive success.  JAMES W. RIVERS, DONALD P. ALTHOFF, PHILIP S. GIPSON, Kansas Coop. Fish & Wildl. Res. Unit, Div. Biol., Kansas State Univ., Manhattan, KS; and JEFFREY S. PONTIUS, Dept. Stat., Kansas State Univ.

10:45 224 Seven year analysis on productivity and nesting success of Thick-billed Parrots.  TIBERIO MONTERRUBIO-RICO,  Facultad de Biología, UMSNH, Morelia Mich., México, and ERNESTO ENKERLIN, Tecnológico de Monterrey, Monterrey, N. L., Méx.

11:00 225 Demography of Southwestern Willow Flycatchers in central Arizona.  APRIL A. WOODWARD, CHARLES E. PARADZICK and TRACY D. McCARTHEY, Arizona Game Fish Dept., Phoenix, AZ.

11:15 226 *The importance of extreme weather events to the breeding biology of a high-elevation honeycreeper in Hawaii.  WENDY A. KUNTZ. Prog. EECB, Dept. Zool., Univ. Hawaii at Manoa, Manoa, HI.

11:30 227 *Group membership dynamism in the cooperatively polyandrous Galápagos Hawk.  KENNETH M. LEVENSTEIN, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR; MICHELLE DONAGHY CANNON, Dept. For. Sci., Oregon State Univ., Corvallis OR; BRIAN J. CANNON, Marine Fish. Serv., Ukiah, CA; JAMES C. BEDNARZ, Dept. Biol. Sci., Arkansas State Univ., JENNIFER L. BOLLMER and PATRICIA G. PARKER, Dept. Biol, Univ. Missouri-St. Louis, St. Louis, MO.

11:45 228 Hatching failure and embryonic mortality within a Red-cockaded Woodpecker population in South Carolina:  current conditions and traditional constraints.  NANCY E. JORDAN, DAVID L. OTIS, South Carolina Fish & Wildl. Res. Unit, Clemson Univ., Clemson, SC; RALPH COSTA, Red-cockaded Woodpecker Field Office, U.S. Fish & Wildl. Serv., Clemson, SC; and SIDNEY A. GAUTHREAUX, Dept. Biol. Sci., Clemson Univ., Clemson, SC.

12:00 229 Growth, size and sex of last-laid, last-hatched Tree Swallow offspring.  L. SCOTT JOHNSON, LARRY WIMMERS, SARA CAMPBELL and LUCY HAMILTON, Biol. Dept., Towson Univ., Towson, MD.

12:15 230 50:50 offspring sex ratios in Savannah Sparrows:  a 14-year study.  NATHANIEL T. WHEELWRIGHT and RACHEL SEABURY, Dept. Biol., Bowdoin Coll., Brunswick, ME.

Session 7D (Pan-Am Auditorium).  Foraging and diet.  Dawn A. Sherry, chair.

10:30 231 Regional variation in the diet of the Ocellated Turkey in the Yucatan Peninsula.  SOPHIE CALMÉ and ESMERALDA DUARTE, Ecosur, Chetumal, Mexico.

10:45 232 Are insects an alternative energy source for hummingbirds?  an experimental study in Green-backed Firecrowns (Sephanoides sephanoides).  MA. J. FERNÁNDEZ J. and M. V. LÓPEZ-CALLEJA, Centro de Estudios Avanzados en Ecología y Biodiversidad, Departamento de Ecología, P. Universidad Católica de Chile, Chile.

11:00 233 Mastication of prey availability:  moving from concept to operational definitions.  JAMES P. WARD, Jr., Rocky Mountain Res. Sta., Alamogordo, NM.

11:15 234 Flock foraging by wintering wading birds in a Texas coastal marsh.  DAWN A. SHERRY, Caesar Kleberg Wildl. Res. Inst., Texas A&M Univ.-Kingsville, Texas A&M Univ., College Station, TX; FELIPE CHAVEZ-RAMIREZ, Platte River Whooping Crane Trust, Wood River, NE; and R. DOUGLAS SLACK, Texas A&M Univ.

11:30 235 Foraging behavior of birds in an artificially structured tropical habitat:  a test of plant preference and behavioral plasticity.  JAMES A. ROTENBERG, Dept. Biol., Univ. California, Riverside, CA.

11:45 236 Covariation between prey abundance and Northern Goshawk fecundity on the Kaibab Plateau, Arizona.  SUSAN R. SALAFSKY, USDA For. Serv., Rocky Mountain Res. Sta., Fort Collins, CO.

12:00 237 *Dietary response and demography in a population of Imperial Eagles in a spatially heterogeneous environment in Kazakhstan.  TODD KATZNER, Dept. Biol., Arizona State Univ., Tempe, AZ, EVGENY BRAGIN, Naurzum Zapovednik, Karamendy, Kazakhstan, STEVEN KNICK, USGS-FRESC, Boise, ID, and ANDREW SMITH, Dept. Biol., Arizona State Univ.

12:15 238 Avian insectivory limits herbivorous insects in a Neotropical forest canopy.  SUNSHINE A. VAN BAEL, Dept. Animal Biol., Univ. Illinois Urbana-Champaign, Champaign, IL, JEFFREY D. BRAWN, Dept. Nat. Res., Univ. Illinois Urbana-Champaign, and SCOTT K. ROBINSON, Dept. Animal Biol., Univ. Illinois Urbana-Champaign.

Session 7E (Pontalba).  Conservation.  John M. Marzluff, chair.

10:30 239 Nest success and abundance of grassland birds in native pasture, seeded pasture, and hay fields: assessing the conservation value of cultivated lands converted to perennial forage in Saskatchewan.  D. GLEN McMASTER and STEPHEN. K. DAVIS, Saskatchewan Wetland Conserv. Corp. Regina, SK.

10:45 240 Measuring spatial scales of avian reproductive success combining MAPS and the USGS National Land Cover datasets.  PHILIP NOTT and DAVID F. DeSANTE, Institute for Bird Populations, CA.

11:00 241 Are our national parks safe for nesting birds?  JOHN M. MARZLUFF and MATTHIAS LEU, Coll. For. Res. Univ. Washington, Seattle, WA.

11:15 242 Update on the conservation and recovery of the endangered Grenada Dove.  DAVID E. BLOCKSTEIN, Natl. Council Sci. & Environ., Washington, DC, BONNIE L. RUSK, Dry Forest Project, Grenada, W.I. and STANLEY A. TEMPLE, Dept. Wildl. Ecol., Univ. Wisconsin, Madison, WI.

11:30 243 Current status of the captive release program for the Puerto Rican Parrot (Amazona vittata). THOMAS H. WHITE, Jr., U.S. Fish & Wildl. Serv., Rio Grande, PR.

11:45 244 Struggling out of the bottleneck: recovery of the Puerto Rican Parrot from 1973 to 2000.  JOSEPH M. WUNDERLE, Intl. Inst. Trop. For., USDA For. Serv., PR, NOEL F. R. SNYDER, Portal, AZ, STEVEN R. BEISSINGER, Div. Ecosys. Sci, Univ. California-Berkeley, Berkeley, CA, and J. MICHAEL MEYERS, USGS, Univ. Georgia, Athens, GA.

12:00 245 Developing biological objectives for landbirds in the Colorado Plateau/Southern Rockies Bird Conservation Region.  CAROL J. BEARDMORE, Partners in Flight, Phoenix, AZ.

12:15 246 Land use management and songbird diversity in the Adirondack Park, NY.  MICHALE J. GLENNON and WILLIAM F. PORTER, Dept. Env. For. Biol., State Univ. NY, Coll. Env. Sci. For., Syracuse, NY.

Session 7J (Poydras).  Cowbird biology.  Mark E. Hauber, chair.

10:30 247 Is host use by sympatric cowbirds random?  KEVIN ELLISON, Dept. Zool., Univ. Manitoba, Winnipeg, MB.

10:45 248 *Does offspring sex affect host use by sympatric cowbirds?  KEVIN ELLISON, Dept. Zool., Univ. Manitoba, Winnipeg, MB.

11:00 249 *Do Brown-headed Cowbirds exhibit density-dependent habitat selection in tallgrass prairie landscapes?  WILLIAM E. JENSEN and JACK F. CULLY, Jr., Kansas Coop. Fish and Wildl. Res. Unit, Div. of Biol., Kansas State Univ., Manhattan, KS.

11:15 250 First contact:  conspecific social association and species recognition in a brood parasite.  MARK E. HAUBER, Dept. Neurobio. & Behav., Cornell Univ., Ithaca, NY and Dept. Integrative Biol., Univ. California, Berkeley, CA.

11:30 251 Landscape effects mediate breeding cowbird habitat selection in midwestern forests.  CHRISTINE A. HOWELL, Biol. Dept., Univ. Missouri, St. Louis, MO; WILLIAM DIJAK , FRANK THOMPSON III, Nor. Central For. Exp. Sta., Columbia, MO

11:45 252 Breeding biology of brood parasitic cowbirds characterized by parent-offspring and sib-group reconstruction.  BILL M. STRAUSBERGER and MARY V. ASHLEY, Dept. Biol., Univ. Illinois, Chicago, IL.

12:00 253 Character shift among sympatric brood parasites in Arizona:  evidence of competition for hosts?  JAMESON F. CHACE, Dept. EPO Biol., Univ. Colorado, Boulder, CO.

12:15 254 Parasite invasion, host demography and extinction risk.  PETER ARCESE, Centre for Applied Conser. Res., Dept. For. Sci., Univ. British Columbia, Vancouver, BC.

12:30  Lunch Break; for options see FOOD section, p. 6 above
 

Symposium N (Vieux Carré - A).  Satellite telemetry of birds.  K. D. Meyer, J. A. Coulson & B. A. Millsap, organizers.
 

14:00 S104 Satellite telemetry of Alaskan seabirds.  SCOTT A. HATCH, VERENA A. GILL, DAVID C. DOUGLAS, and DANIEL M. MULCAHY, U.S. Geol. Surv., Alaska Biol. Sci. Center, Anchorage, AK.

14:15 S105 Habitats used by Prairie Falcons during the non-nesting season.  KAREN STEENHOF, MARK R. FULLER, MICHAEL N. KOCHERT, USGS For. & Rangeland Ecosys. Sci. Center, Boise, ID, and KIRK K. BATES, Boise State Univ., Raptor Res. Center, Boise.

14:30 S106 *Year round movements and habitats of Northern Goshawks breeding in Utah using satellite telemetry.  SARAH A. SONSTHAGEN, CLAYTON M. WHITE, Dept. Zool., Brigham Young Univ., Provo, UT, and RONALD RODRIGUEZ, USDA For. Serv. Dist. Office, Cedar City, UT.

14:45 S107 Conservation of migratory Golden Eagles in relation to large-scale land use changes in western North America.  CAROL L. McINTYRE, Natl. Park Serv., Fairbanks, AK; MICHAEL W. COLLOPY, Univ. Nevada, Reno, NV; and DAVID C. DOUGLAS, USGS/BRD, Juneau, AK.

15:00 S108 Post-fledgling dispersal and important use areas of juvenile and subadult Bald Eagles from west central Florida nests.  ELIZABETH K. McCONNELL, BRIAN A. MILLSAP, Florida Fish & Wildl. Conser. Comm., Tallahassee, FL; and ANTHONY STEFFER, Raptor Management Consultants, Tampa, FL.

15:15 S109 Radio-tracking wintering eagles by satellite in Eastern North America:  gee whiz, it's cool to know where they go;  but hey, there's more!  PETER E. NYE,  NYSDEC,  Albany, NY; and BLANCHE TOWN, NYSDEC, Dexter, NY.

15:30  Refreshment Break, Hotel Inter-Continental, Third Floor

16:00 S110 Post-fledging movements of Great Egrets from breeding colonies in central Florida.  TIMOTHY F. BREEN, Florida Fish & Wildl. Conser. Comm., Ocala, FL, and JAMES A. RODGERS Jr., Florida Fish & Wildl. Conser. Comm., Gainesville, FL.

16:15 S111 Satellite tracking of eastern population Tundra Swans.  SCOTT A. PETRIE and KERRIE L. WILCOX, Long Point Waterfowl & Wetlands Research Fund, Bird Studies Canada, Port Rowan, ON.

16:30 S112 Migration and wintering areas of American Bitterns from north-central United States as determined by satellite and vhf telemetry, 1998-2001.  GARY HUSCHLE, Agassiz Natl. Wildl. Refuge, Middle River, MN; JOHN E. TOEPFER, Plover, WI; and DAVID C. DOUGLAS, USGS, Alaska Sci. Center, Douglas, AK.

16:45 S113 A study of raptor migration and wintering in the Old World using satellite telemetry.  BERND-U. MEYBURG and CHRISTIANE MEYBURG, WWGBP, Berlin, Germany.

17:00 S114 *Migratory patterns of North American Peregrine Falcons:  the origin factor.  MARCEL A. GAHBAUER, DAVID M. BIRD, Avian Sci. & Conser. Centre, McGill Univ., Montreal, PQ, and GEOFFREY HOLROYD, Canadian Wildl. Serv., Edmonton.

17:15 S115 Transequatorial migration and conservation biology of the Swallow-tailed Kite.  KENNETH D. MEYER, Avian Research and Conservation Inst., Gainesville, FL.

Session 8B (LaSalle - BC).  Ecology. Paul B. Hamel, chair.

14:00 255 *The importance of southern Appalachian wetlands to breeding birds; the role of beaver.  JASON BULLUCK, Dept. Biol., Appalachian State Univ., Boone, NC.

14:15 256 *Acadian Flycatchers in Midwestern riparian forests -- local- and landscape-level patterns.  MARJA H. BAKERMANS and AMANDA D. RODEWALD, School Nat. Res., Ohio State Univ., Columbus, OH.

14:30 257      Microclimate conditions of Burrowing Owl nests in artificial burrow systems.  RYAN S. BRADY, JAMES R. BELTHOFF and COLLEEN E. MOULTON, Dept. Biol. and Raptor Res. Center, Boise State Univ., Boise, ID.

14:45 258 *Birds of a palm-dominated terra firme forest:  the affect of habitat heterogeneity on regional avian diversity.  J. W. ARMACOST, Jr., Dept. Biol. Sci., Illinois State Univ., Normal, IL.

15:00 259 *Invasion of riparian forests by exotic shrubs impacts on nesting birds.  KATHI L. BORGMANN and AMANDA D. RODEWALD, School Nat. Res., Ohio State Univ., Columbus, OH.

15:15 260 *Farming for shorebirds:  environmental and agricultural predictors of non-breeding habitat use in the Fraser Delta.  LESLEY J. EVANS OGDEN, DAVID B. LANK, Centre Wildl. Ecol., Dept. Biol. Sci., Simon Fraser Univ., Burnaby, BC,  and SHABTAI BITTMAN, Pacific Agri-Food Research Centre, Agassiz, BC.

Session 8C (Cabildo).  Breeding biology.  Cameron K. Ghalambor, chair.

14:00 261 Extreme variability in Tufted Puffin reproductive performance from 1975 - 2000:  the effects of ocean climate.  CARINA GJERDRUM, Dept. Ecol. Evol. Biol., Univ. Connecticut, Storrs, CT; ANNE VALLEÉ, Dept. Biol., Univ. British Columbia, Vancouver, BC; JOHN L. RYDER, Biol. Sci., Simon Fraser Univ., Burnaby, BC; DOUGLAS F. BERTRAM, Canadian Wildl. Serv., Sidney, BC; and COLLEEN CASSADY ST. CLAIR, Dept. Biol., Univ. Alberta, Edmonton, AB.

14:15 262 Nesting habitat of the Aplomado Falcon in Chihuahua, Mexico.  ALBERTO MACIAS-DUARTE, The Peregrine Fund, Chihuahua, Mexico, ALBERTO LAFON-TERRAZAS, Universidad Autónoma de Chihuahua, Chihuahua, México; ANGEL B. MONTOYA, The Peregrine Fund, Boise ID, and ROBERT TAFANELLI, Border Wildl. Consultants, Las Cruces NM.

14:30 263 Nest site selection and watershed location influences reproductive success of American Dippers.  CHRISTY A. MORRISSEY, Dept. Biol. Sci., Simon Fraser Univ., Burnaby, BC.

14:45 264 The effects of human recreation on American Oystercatcher reproductive success and nesting habitat selection in Georgia.  R. CLAY GEORGE, SARA H. SCHWEITZER, D. B. Warnell School For. Res., Univ. Georgia, Athens, GA; CHRISTOPHER J. FONNESBECK, Georgia Coop. Fish &  Wildl. Res. Unit, Univ.Georgia; and BRADFORD WINN, Georgia Dept. Nat. Res.

15:00 265 Effects of cattle grazing on the nesting success of birds in riparian and Gambel oak pastures in southwest Colorado.  CATHERINE P. ORTEGA and JOSEPH C. ORTEGA, Dept. Biol., Fort Lewis Coll., Durango, CO.

15:15 266 Exploitation of conifer resin by nesting Red-breasted Nuthatches may ameliorate competitive and predatory interactions.  CAMERON K. GHALAMBOR, Dept. Biol., Univ. California. Riverside, CA.

Session 8D (Pan-Am Auditorium).  Vocalizations.  Paul M. Nolan, chair.

14:00 267 Audience effect on Pinyon Jay vocalizations.  CHRISTINE DAHLIN, Avian Cognition Lab., Dept. Biol. Sci., Northern Arizona Univ., Flagstaff, AZ.

14:15 268 Geographic variation in the simple song of the Henslow's Sparrow:  evidence for evolutionarily significant units?  SIRI B. IBARGÜEN, Dept. Evol. Ecol. & Organ. Biol., Ohio State Univ., Columbus, OH; MARK S. WOODREY, U.S. Fish & Wildl. Serv., Jackson, MS; DOUGLAS A. NELSON and  THOMAS A. WAITE, Dept. Evol. Ecol. & Organ. Biol., Ohio State Univ.

14:30 269 Female choice for song characteristics in the House Finch.  PAUL M. NOLAN and GEOFFREY E. HILL, Dept. Biol. Sci., Auburn Univ., Auburn, AL.

14:45 270 Vocal differences among Caribbean endemic Adelaide's, Barbuda and St. Lucia Warblers.  CYNTHIA A. STAICER, Dept. Biol., Dalhousie Univ., Halifax, NS.

15:00 271 Factors influencing mate choice by female Burrowing Owls.  PATRICIA C. ARROWOOD, CAROL FINLEY, Dept. Fish. & Wildl. Sci., New Mexico State Univ., Las Cruces, NM, and BRUCE C. THOMPSON, Dept. Fish. & Wildl. Sci. and USGS, New Mexico Coop. Fish & Wildl. Res. Unit, New Mexico State Univ.

15:15 272 Song ranging in incubating Blue-headed Vireos.  EUGENE S. MORTON, Smithsonian Inst., Front Royal, VA; JOAN HOWLETT, Edinboro, PA; and NICOLE KOPYSH, Burlington, ON.

Session 8E (Pontalba).  Systematics.  Carla Cicero, chair.

14:00 273 *The causes of differential rates of molecular evolution in bird mitochondrial DNA.  CHRISTOPHER C. WITT, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

14:15 274 *Phylogenetics and geographic variation of tinkerbirds (Pogoniulus):  implications for African biogeography.  ROBERT G. MOYLE, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

14:30 275 Molecular phylogeny of passerines:  study of the Muscicapoidea.  ALICE CIBOIS, Am. Mus. Nat. Hist., New York, NY and Nat. Hist. Mus. Geneva, Switzerland, JULIE FEINSTEIN and JOEL CRACRAFT, Am. Mus. Nat. Hist., New York, NY.

14:45 276 Mitochondrial perspective on systematics of rosy-finches (Leucosticte).  SERGEI V. DROVETSKI, Dept. Ecol. Evol. Behav., Univ. Minnesota, St. Paul, MN, and SIEVERT ROHWER,  Burke Mus. and Dept. Zool., Univ. Washington, Seattle, WA.

15:00 277 The role of ecologic diversification in sibling speciation of Empidonax flycatchers:  multigene evidence from mtDNA.  CARLA CICERO, Mus. Vert. Zool., Univ. Calif., Berkeley, CA, and NED K. JOHNSON, Mus. Vert. Zool. and Dept. Integrative Biol., Univ. Calif., Berkeley, CA.

15:15 278 A molecular test of the superfamily Muscicapoidea:  a minor tear in the tapestry.  GARTH SPELLMAN and GARY VOELKER, Barrick Mus., Univ. Nevada, Las Vegas, NV.

Session 8H (Vieux Carré - B).  Breeding biology.  Marty L. Leonard, chair.

14:00 279 *Consequences of nesting date on nesting success and juvenile survival in White Ibises.  JOHN D. SEMONES and PETER C. FREDERICK, Dept. Wildl. Ecol. & Cons., Univ. Florida, Gainesville, FL.

14:15 280 The influence of brood size on parental provisioning and the time to fledging in nestling Northern Mockingbirds.  C. G. SIMS, Dept. Biol., Univ. Mississippi, University, MS, and R. L. HOLBERTON, Dept. Biol., Univ. Maine, Orono, ME.

14:30 281 Error and begging by nestling birds.  MARTY L. LEONARD and ANDREW G. HORN,  Dept. Biol., Dalhousie Univ., Halifax, NS.

14:45  282 Are nestlings acting as a cue for modulating the adrenocortical response to stress?  C. M. WILSON, Dept. Biol., Hollins Univ., Roanoke, VA; and R. L. HOLBERTON, Dept. Biol., Univ. Maine, Orono, ME.

15:00 283 Contrasting differences in island and mainland populations of White-winged Fairy-Wrens:  a release of sexual selection.  MELANIE K. RATHBURN and BOB MONTGOMERIE, Dept. Biol., Queen's Univ., Kingston, ON.

15:15 284 Life history differences between populations of a Neotropical thrush:  nest predation or food limitation?  VALENTINA FERRETTI, PAULO E. LLAMBÍAS, Dept. Gen., Ecol. & Evol., Univ. Buenos Aires, Buenos Aires, and THOMAS E. MARTIN, Montana Coop. Wildl. Res. Unit, Univ. Montana, Missoula, MT.

Session 8J (Poydras).  Disease and parasites.  Daniel A. Cristol, chair.

14:00 285 Epidemic of bill deformities among Black-capped Chickadees and other birds in Alaska.  COLLEEN M. HANDEL, USGS Alaska Sci. Center, Anchorage, AK; KIMBERLY A. TRUST, U.S. Fish & Wildl. Serv., Anchorage, AK; STEVE M. MATSUOKA, LISA M. PAJOT and SANDRA L. TALBOT, USGS, Alaska Sci. Center.

14:15 286 Do parasites cause reduced reproductive success among late-breeding birds?  RUSSELL D. DAWSON, Biol. Prog., Univ. Northern British Columbia, Prince George BC.

14:30 287 Mycoplasmal conjunctivitis in wild House Finches:  estimating parameters of disease models.  CRISTINA R. FAUSTINO and EVAN G. COOCH, Dept. Nat. Res., Cornell Univ., Ithaca, NY.

14:45 288 Feather-busting bacteria do not degrade feathers on live birds.  DANIEL A. CRISTOL and JESSICA L. ARMSTRONG, Dept. Biol., Coll. William & Mary, Williamsburg, VA.

15:00 289 Host-parasite relationships of the polyandrous Galápagos Hawk:  coevolution and ecology.  NOAH K. WHITEMAN and PATRICIA G. PARKER, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO.

15:15 290 Microbial infection of unincubated avian eggs:  a constraint on incubation behavior and hatching patterns?  MARK I. COOK, STEVEN R. BEISSINGER, Ecosys. Sci. Div., Univ. California, Berkeley, CA, GARY A. TORANZOS, R.C.M.I., Univ. Puerto Rico, Rio Piedras; and WAYNE J. ARENDT, USDA For. Serv., IITF/Sabana Field Res. Sta., Palmer, PR.

15:30  Refreshment Break, Hotel Inter-Continental, Third Floor

Session 9B (LaSalle - BC).  Ecology.  James J. Giocomo, chair.

16:00 291 *Nest predation on Sabine's Gulls:  the influence of alternative prey.  IAIN J . STENHOUSE, Biopsychol. Programme, Memorial Univ., St. John's, NF; H. GRANT GILCHRIST, Canadian Wildl. Serv., Hull, PQ; and WILLIAM A. MONTEVECCHI, Biopsychol. Programme, Memorial Univ.

16:15 292 *The effects of recreational trail-use on the nesting ecology and behavior of American Robins and Yellow Warblers.  WILLIAM W. MERKLE, Dept. EPO Biol., Univ. Colorado, Boulder, CO.

16:30 293 How much is Great Horned Owl predation contributing to limitation of a Swallow-tailed Kite population?  JENNIFER O. COULSON, Dept. Ecol. & Evol. Biol., Tulane Univ., New Orleans, LA.

16:45 294 Predicting Wood Thrush nest success:  local habitat versus landscape factors.  MELANIE J. L. DRISCOLL and THERESE M. DONOVAN, USGS Vermont Coop. Fish & Wildl. Res. Unit, Burlington, VT.

17:00 295 *A preliminary test of the primary nest predator/nest predator diversity hypothesis.  KEITH P. LEWIS and WILLIAM A. MONTEVECCHI, Biopsychol. Promamme, Memorial Univ. Newfoundland, St. John's, NF.

17:15 296 *Trends in carbon flux to seabirds in the Peruvian upwelling.  JAIME JAHNCKE, Dept. Ecol. & Evol. Biol., Univ. California, Irvine, CA,  DAVID M. CHECKLEY, Scripps Inst. Oceanography, La Jolla, CA, and GEORGE L. HUNT, Univ. California, Irvine.

Session 9D (Pan-Am Auditorium).  Breeding biology.  Joseph C. Ortega, chair.

16:00 297 The predictability of predation in American Robin nests in southwest Colorado.  JOSEPH C. ORTEGA and CATHERINE P. ORTEGA, Dept. Biol., Fort Lewis Coll., Durango, CO.

16:15 298 Productivity and nest site selection of Swainson's Hawks in southeastern Arizona.  CATHERINE A. NISHIDA, School Renew. Nat. Res., Univ. Arizona, Tucson, AZ; STEPHEN DeSTEFANO, Massachusetts Coop. Fish & Wildl. Res. Unit, Univ. Massachusetts, Amherst, MA; CLINT W. BOAL, Texas Coop. Fish & Wildl. Res. Unit, Texas Tech. Univ., Lubbock, TX; and ROYDEN J. HOBBS School Renew. Nat. Res., Univ. Arizona.

16:30 299 Could incubation costs drive latitudinal variation in clutch size?  A look at variation in incubation periods.  CAREN B. COOPER, WES M. HOCHACHKA, ANDRE DHONDT, Cornell Lab. Ornithol., Ithaca, NY,  and GREG BUTCHER, Partners in Flight, Brookfield, WI.

16:45 300 Phenotypic variation in reproductive traits of female Eastern Kingbirds:  female or site effects?  MICHAEL T. MURPHY, Dept. Biol., Portland State Univ., Portland, OR.

17:00 301 *Ovenbird population dynamics in response to forest management in northern Minnesota.  BRADY J. MATTSSON, Warnell School For. Res., Univ. Georgia, Athens, GA, and GERALD J. NIEMI, Dept. Biol., Univ. Minnesota, Duluth, MN.

17:15 302 Burrowing Owl nesting strategies and nest success in urban versus grassland habitats and among burrow types.  DANIELE BERARDELLI and MARTHA DESMOND, Dept. Fish. & Wildl. Sci., New Mexico State Univ., Las Cruces, NM.

Session 9C (Cabildo).  Behavior.  Daniel J. Mennill, chair.

16:00 303 *Territory defense in tropical birds: are females as aggressive as males?  BRADLEY C. FEDY and BRIDGET J. M. STUTCHBURY, Dept. Biol., York Univ., Toronto, ON

16:15 304 *Delayed direct benefits as an adaptive advantage of cooperative courtship in the Lance-tailed Manakin.  EMILY H. DuVAL, Dept. Integrative Biol., Univ. Calif. Berkeley, Berkeley, CA.

16:30 305 The role of plumage badges on mate and extra-pair choice in American Redstarts.  PETER J. KAPPES, Dept. Biol., York Univ., Toronto, ON.

16:45 306 *Black and white signals of sex and rank in Black-capped Chickadees.  DANIEL J. MENNILL, STEPHANIE M. DOUCET, ROBERT MONTGOMERIE and LAURENE M. RATCLIFFE, Biol. Dept., Queen's Univ., Kingston, ON.

17:00 307 *Dominant male Red Junglefowl test the dominance status of other males.  TIMOTHY  H. PARKER and J. DAVID LIGON, Univ. New Mexico, Albuquerque, NM.

17:15 308 *Where do you want to eat?  a comparison of foraging strategy in patch choice among four syntopic obligate army-ant following bird species.  SUSAN K. WILLSON HILLMAN, Div. Biol. Sci., Univ. Missouri, Columbia, MO.

Session 9E (Pontalba).  Genetics.  Donald C. Dearborn, chair.

16:00 309 Genetic characteristics of the Northern Goshawk of southeastern coastal Alaska.  SANDRA L. TALBOT, JUDY R. GUST, BARBARA J. PIERSON, USGS Alaska Sci. Center, Anchorage, AK; SARAH A. SONSTHAGEN, Dept. Zool., Brigham Young Univ., Provo, UT; FRANK DOYLE, Wildlife Dynamics Consulting, Telkwa, BC; DON DOYLE, Min. Environ. Lands & Parks, Nanaimo, BC; TED SWEM, U.S. Fish & Wildl. Serv., Fairbanks, AK; CRAIG FLATTEN and KIM TITUS, Div. Wild. Conserv., Alaska Dept. Fish & Game, Douglas, AK.

16:15 310 Genetic similarity among mates in Great Frigatebirds.  DONALD C. DEARBORN, Dept. Biol. & Progr. Anim. Behav., Bucknell Univ., Lewisburg, PA; LOREN COHEN, Progr. Anim. Behav., Bucknell Univ.; and ANGELA D. ANDERS, Progr. Ecol., Penn State Univ., State College, PA.

16:30 311 Identification of genetic structure and natal origins in migrating Sharp-shinned Hawks in North America.  JOSHUA M. HULL, Dept. Biol., Sonoma State Univ., Rohnert Park, CA and Golden Gate Raptor Observatory, Sausalito, CA; and DEREK J. GIRMAN, Dept. Biol., Sonoma State Univ.

16:45 312 Phylogeny inferred from molecular genetics reveals three origins of brood parasitism in the cuckoos Cuculidae.  ROBERT B. PAYNE, Mus. Zool. and Dept. Ecol. & Evol. Biol., Univ. Michigan, Ann Arbor, MI, and MICHAEL D. SORENSON, Dept. Biol., Boston Univ., Boston, MA.

17:00 313 A molecular assessment of the "true" thrushes, Sibley and Ahlquist's Turdinae.  JOHN KLICKA and GARY VOELKER, Barrick Mus., Univ. Nevada Las Vegas, Las Vegas, NV.

17:15 314 Asymmetric hybridization in Black Ducks and Mallards.  RYAN J. HARRIGAN and MICHAEL D. SORENSON, Dept. Biol., Boston Univ., Boston, MA.

Session 9H (Vieux Carré - B).  Breeding biology.  James Cox, chair.

16:00 315 Variation in nesting success and group size in the Brown-headed Nuthatch.  JAMES COX, Tall Timbers Res. Sta., Tallahassee, FL.

16:15 316 Between-year and between-colony variation in sex-specific provisioning strategies of Adélie Penguins in relation to adult mass, mass change, and access to pack ice.  NADAV NUR, Point Reyes Bird Observ., Stinson Beach, CA; DAVID G. AINLEY, GRANT BALLARD, H.T. Harvey & Assoc., San Jose, CA, KERRY J. BARTON, PETER R. WILSON, Landcare Research, New Zealand, MICHAEL L. BEIGEL, Beigel Tech. Corp., and NATHANIEL POLISH, Daedalus Tech. Group.

16:30 317 Against the odds:  nestling sex ratio variation in Green-rumped Parrotlets.  AMBER E. BUDDEN and STEVEN R. BEISSINGER, Ecosys. Sci. Div., Univ. California, Berkeley, CA.

16:45 318 Study design for avian population research:  sample size guidelines for detecting patterns in demographic parameters.  MARK E SEAMANS and R. J. GUTI ÉRREZ, Dept. Fish., Wildl. & Cons. Biol., Univ. Minnesota, St. Paul, MN.

17:00 319 Annual and seasonal survival of Cerulean Warblers breeding in Ontario, Canada.  JASON JONES, Dept. Biol. Sci., Dartmouth Coll., Hanover, NH; JENNIFER J. BARG, Queen's Univ., Kingston, ON; T. SCOTT SILLETT, Smithson. Mig. Bird Center, Washington, DC; M. LISA VEIT, Ontario SPCA, Newmarket, ON; and RALEIGH J. ROBERTSON, Queen's Univ.

17:15 320 Food supplementation and social facilitation affects the sex ratio of Black-legged Kittiwake broods. RICHARD B. LANCTOT, VERENA A. GILL, SCOTT A. HATCH, SANDY TALBOT, U.S. Geol. Serv., Alaska Sci. Center, Anchorage, AK, and VICKI FRIESEN, Dept. Biol., Queen's Univ., Kingston, ON.

Session 9J (Poydras).  Foraging. Jennifer A. Blakesley, chair.

16:00 321 *Dietary analysis of Northern Hawk Owls in interior Alaska.  JOHN E. SHOOK and MARC J. BECHARD, Raptor Res. Center, Boise State Univ., ID.

16:15 322 Effects of summer prescribed fires on taxa richness and abundance of avian and macroinvertebrate populations and associated vegetative changes.  KEN MIX, Welder Wildl. Found., Dept. Animal & Wildl. Sci., Texas A&M Univ.-Kingsville and Caesar Kleberg Inst., Kingsville, TX, and WILLIAM P. KUVLESKY Jr., Dept. Animal & Wildl. Sci., Texas A&M Univ.-Kingsville and Caesar Kleberg Inst.

16:30 323 *Factors affecting foraging success of the White-tailed Kite in the wetland habitats of Suisun Marsh, California (1970 - 1971).  HEATHER M. MOHAN, Western Illinois Univ., Macomb, IL; WILLIAM IKO and REY STENDELL, USGS-BRD, Ft. Collins, CO.

16:45 324 *A bioenergetic model of trout predation by Great Blue Herons on the White River in Arkansas.  LYNN S. HODGENS, JAMES C. BEDNARZ, Dept. Biol., Arkansas State Univ., Jonesboro, AR, and STEVE BLUMENSHINE, Dept. Biol., California State Univ., Fresno, CA.

17:00 325 *Analysis of seabird wing shape using relative warp analysis.  MICHAEL L. BREWER, Dept. Biol., California State Univ., Northridge, CA; LISA T. BALLANCE, Southwest Fisheries Sci. Center, La Jolla, CA; and FRITZ HERTEL, Dept. Biol., California State Univ., Northridge, CA.

17:15 326 Influence of seed abundance and diversity on a wintering Chihuahuan Desert avifauna.  STEVEN NIEMELA and MARTHA DESMOND, Dept. Fish. & Wildl. Sci., New Mexico State Univ., Las Cruces, NM.

18:30 - 21:30 Poster Session II (LaSalle - A).  New Orleans Dessert Reception with coffee and cash bar

578 *Postfledging ecology of White-throated Robins.  EMILY B. COHEN, Dept. Zool., Michigan State Univ., and CATHERINE A. LINDELL, Dept. Zool. and Basic Sci. & Remote Sensing Initiative, Michigan State Univ., East Lansing, MI.

579 Habitat use patterns of wintering grassland birds in Chihuahua, Mexico.  CESAR MENDEZ-GONZALEZ, Dept. Fish. & Wildl. Sci., New Mexico State Univ., Las Cruces, NM; ALBERTO LAFON-TERRAZAS, Universidad Autonoma de Chihuahua, Mexico; and ANGEL MONTOYA, The Peregrine Fund.

580 Seed dispersal by birds contributes to Chinese tallow tree invasiveness in Louisiana and South Carolina.  WYLIE C. BARROW, Jr., USGS, Natl. Wetlands Res. Center, Lafayette, LA; IAN J. RENNE, Dept. Biol. Sci., Clemson Univ., Clemson, SC; LORI A. JOHNSON RANDALL and CLINT JESKE, Natl. Wetlands Res. Center.

581 *Nest site selection and the use of canopy gaps in three thrush species on an industrial forest.  RACHEL L. DELLINGER and PETRA BOHALL WOOD, West Virginia Coop. Fish & Wildl. Res. Unit and Div. For., West Virginia Univ., Morgantown, WV.

582 A new species of flightless sandpiper from Henderson Island, South Pacific.  MICHAEL R. DICKISON, Dept. Biol., Duke Univ., Durham, NC, and GRAHAM WRAGG, Ashburton, New Zealand.

583 Spatial patterns of habitat use by manakins (Pipridae) in a lowland wet forest in Ecuador: preliminary results from captures and spot-mapping.  BETTE A. LOISELLE, JOHN G. BLAKE and T. BRANDT RYDER, Dept. Biol. and Intl. Ctr. Trop. Ecol., Univ. Missouri-St. Louis, MO.

584 Phylogenetic relationships and character evolution in the kingbirds (Tyrannus).  JASON A. MOBLEY, Mus. Vert. Zool. and Dept. Integrat. Biol., Univ. California, Berkeley, CA.

585 *Colonization of eastern Brazil by the Cinereous Warbling-Finch, with some comments on its natural history.  RÔMULO RIBON, Ecol. Cons. Man. Vida Silv., Univ. Fed. Minas Gerais, Belo Horizonte, MG, Brazil and Museu de Zool. João Moojen de Oliveira, Univ. Fed. Viçosa, MG, Brazil.

586 Does marsh fragmentation affect Song Sparrow nest success?  DIANA STRALBERG, YVONNE CHAN, NADAV NUR, HILDIE SPAUTZ and JULIAN WOOD, Point Reyes Bird Observ., Stinson Beach, CA.

587 Linking breeding and wintering distributions of Southwestern Willow Flycatchers with stable Isotopes.  MATTHEW J. JOHNSON, USGS/Colorado Plateau Field Sta., Northern Arizona Univ., Flagstaff, AZ, and JEFFREY KELLY, USDA For. Serv., Rocky Mountain Res. Sta., Albuquerque, NM.

588 Predators of Southwestern Willow Flycatcher nests in central Arizona:  identification using time-lapse video cameras.  TRACY D. McCARTHEY and DARREN K. BOLEN, Arizona Game & Fish Dept., Phoenix, AZ.

589 Importance of habitat and food availability in site selection of Southwestern Willow Flycatchers.  SYLVIA L. SCHMIDT and JAMES D. FRASER, Dept. Fish. & Wildl. Sci., Virginia Tech, Blacksburg, VA.

590 Reproductive ecology of Tundra Swan in the Mackenzie Delta Region, Canada.  HEATHER A. SWYSTUN, RUSSELL D. DAWSON, Biol. Prog., Univ. Northern British Columbia, Prince George, BC; and JAMES E. HINES, Canadian Wildl. Serv., Yellowknife, NT.

591 Influence of geographic local on avian community structure and species dominance.  MICHAEL S. HUSAK and ERIC T. LINDER, Dept. Biol. Sci., Mississippi State Univ., Mississippi State, MS.

592 Life history studies of New World tropical parrots and their conservation.  KARL S. BERG, Dept. Biol. Sci., Florida Internl. Univ., Miami, FL, RAFAEL ANGEL and JACQUELINE SOCOLA, Fundacion Pro Bosque, Guayaquil, Ecuador.

593 Local at-sea distribution of breeding and non-breeding radio-marked Marbled Murrelets during the breeding season.  PEGGY P. W. YEN, Dept. Biol., Simon Fraser Univ., Burnaby, BC; and RUSSELL BRADLEY, Point Reyes Bird Observ., Stinson Beach, CA.

594 A regional monitoring program for the threatened Marbled Murrelet.  PATRICK G. R. JODICE, U.S. Fish & Wildl. Service, Portland, OR.

595 Characteristics of Marbled Murrelet nest trees and nest sites in the Pacific Northwest.  S. KIM NELSON, Oregon State Univ., Dept. Fish. & Wildl., Corvallis, OR; THOMAS E. HAMER, Hamer Environmental, Mt. Vernon, WA, AMANDA K. WILSON, Oregon State Univ., and DOUGLAS J. MEEKINS, Hamer Environmental.

596 Are Marbled Murrelet pairs at sea actually breeding pairs?  LAURA McFARLANE TRANQUILLA, PEGGY YEN, Centre Wildl. Ecol., Dept. Biol. Sci., Simon Fraser Univ., BC, RUSSELL BRADLEY, Point Reyes Bird Observ., Stinson Beach, CA, and BRETT VANDERKIST, Capilano Coll., Vancouver, BC.

597 New insights from LANDSAT 7 satellite imagery for the investigation of Marbled Murrelet nesting habitat in Desolation Sound, Canada.  SCOTT STEEBY, MRYKA HALL-BEYER, FALK HUETTMANN, Geog. Dept., Univ. Calgary, Calgary, AB, and DOV LANK, Simon Fraser Univ., Burnaby, BC.

598 *Age-related differential timing of spring migration within sexes in passerines.  REBECCA L. M. STEWART, Dept. Zool., Univ. Manitoba, Winnipeg, MB; CHARLES M. FRANCIS, Natl. Wildl. Res. Centre, Hull, PQ, and CHERYL MASSEY, Ontario Veterinary Coll., Univ. Guelph, Guelph, ON.

599 *Gyrfalcon diet in West Greenland during the nestling period.  TRAVIS BOOMS and MARK FULLER, Raptor Res. Center, Boise State Univ., ID.

600 *Host-parasite interactions between Shiny Cowbirds and Creamy-bellied Thrushes.  ANDREA A. ASTI É and JUAN C. REBOREDA, Dept. Biol. Sci., Univ. Buenos Aires, Buenos Aires, Argentina.

601 *Recovering DNA from molted raptor feathers for use in genotyping and mark/recapture analysis:  a work in progress.  SHELLEY BAYARD DE VOLO, GDPE, Colorado State Univ., Fort Collins, CO; MICHAEL F. ANTOLIN, Dept. Biol., Colorado State Univ.; RICHARD T. REYNOLDS, Rocky Mountain Res. Sta., Fort Collins, CO; and KENNETH P. BURNHAM, Colorado Coop. Fish & Wildl. Res. Unit, CO.

602 *Nest defense by Carolina Wrens.  KELLY A. D'ORAZIO and DIANE L. NEUDORF, Dept. Biol. Sci., Sam Houston State Univ., Huntsville, TX.

603 *Conservation tillage, providing source habitat for Horned Lark?  SANDRA B. CEDERBAUM, ROBERT J. COOPER and JOHN P. CARROLL, Warnell School For. Res., Univ. Georgia, Athens, GA.

604 *Song variation in a Dusky Flycatcher population in southwestern Alberta.  T. E. STEHELIN, Dept. Biol. Sci., Univ. Calgary, Calgary, AB.

605 GIS analysis of breeding density, nest site preferences, and population size of three diurnal raptors in southeastern Madagascar.  SARAH M. KARPANTY, Dept. Ecol. & Evol., SUNY Stony Brook, Stony Brook, NY.

606 Trophic levels and heavy metal concentrations of terns at two California nesting colonies.  MICHAEL H. HORN, Dept. Biol. Sci., California State Univ., Fullerton, CA; ANDREW Z. MASON, Dept. Biol. Sci, California State Univ., Long Beach, CA; DARRYL R. SMITH, Calif. State Univ., Fullerton; ELAINE A. LOGOTHETIS, North Carolina Aquarium at Fort Fisher, Kure Beach, NC; and CHARLES T. COLLINS, Calif. State Univ., Long Beach.

607 Island and Western Scrub-Jays:  extra-pair paternity or genetic monogamy?  KATHLEEN SEMPLE DELANEY, Dept. Organ. Biol., Ecol. & Evol., Univ. California, Los Angeles, CA, MARY JO ELPERS, U.S. Fish & Wildl. Serv., Reno, NV; CHARLES T. COLLINS, Dept. Biol., California State Univ., Long Beach, CA, and ROBERT K. WAYNE, Dept. Organ. Biol., Ecol. & Evol., Univ. California, Los Angeles, CA.

608 The ecology of a subsidized predator:  Common Raven.  WILLIAM I. BOARMAN, U.S. Geol. Surv., Western Ecol. Res. Center, San Diego, CA; WILLIAM B. KRISTAN, III, Center Conserv. Biol., Univ. Calif., Riverside, CA, and WILLIAM C. WEBB, Coll. For. Res., Univ. Washington, Seattle, WA.

609 Area and edge effects on forest songbirds in a nonagricultural landscape of north Mississippi.  STEVEN M. AQUILANI, Dept. Biol., Delaware Co. Coll., Media, PA; J. STEPHEN BREWER and DOUG S. HOHMAN, Dept. Biol., Univ. Mississippi, University, MS.

610 Management of early successional forest to increase diversity of insectivorous Neotropical migrants in Quintana Roo, Mexico.  JAMES A. ROTENBERG, Reserva Ecologica El Eden, Cancun, Quintana Roo, Mexico.

611 Spotlighting - a viable method for surveying grassland owls?  ANNE M. CONDON, BRIAN L. SULLIVAN, ERIC L. KERSHNER, DOUGLASS M. COOPER, Inst. Wildl. Stud., San Diego, CA, and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

612 Nest-site characteristics and density of cliff-nesting American Kestrels on San Clemente Island, California.  BRIAN L. SULLIVAN, ANNE M. CONDON, ERIC L. KERSHNER, SEAN P. FINN, DOUGLASS M. COOPER, Inst. Wildl. Stud., San Diego, CA; and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

613 A comparison of Red-tailed Hawk and Common Raven nest sites in a small island ecosystem.  BRIAN L. SULLIVAN, ANNE M. CONDON, ERIC L. KERSHNER, SEAN P. FINN, DOUGLASS M. COOPER, Inst. Wildl. Stud., San Diego, CA, and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

614 Variation in incubation patterns among three species of grebes nesting at Agassiz NWR, Minnesota.  BRUCE A. EICHHORST, Dept. Biol., Univ. Nebraska-Kearney, Kearney, NE.

615 Nocturnal behaviors of Red-necked Grebes in relation to periods of nest inattentiveness.  BRIAN R. MORITZ and BRUCE A. EICHHORST, Dept. Biol., Univ. Nebraska-Kearney, Kearney, NE.

616 *Names, significance, and use of birds by the Guarani-Izoceño indigenous community of Bolivia.  ANA MARÍA SAAVEDRA ZANKYS, Museo de Historia Natural Noel Kempff Mercado, Santa Cruz, Bolivia.

617 *Genetic variation in the Amethyst-throated Hummingbird complex using mitochondrial DNA.  NANDADEVI CORTES-RODRÍGUEZ, MAGALI HONEY-ESCANDÓN, GABRIELA GARCÍA-DERAS and BLANCA HERNÁNDEZ-BAÑOS, Museo de Zoología "Alfonso L. Herrera", Facultad de Ciencias, UNAM, México D.F.

618 Hummingbird flight kinematics along elevational gradients.  DOUGLAS L. ALTSHULER, Dept. Integ. Biol., Univ. California, Berkeley, CA, PENG CHAI, Lincoln, NE, and ROBERT DUDLEY, Sec. Integ. Biol., Univ. Texas, Austin, TX.

619 Foraging and habitat use by the endangered Laysan Teal:  implications for translocation.  MICHELLE REYNOLDS, USGS Pacific Islands Ecosys. Res. Center, VPI&SU, Hawaii Natl. Park, HI.

620 *Development of an avian biosentinel program for Michigan using the Bald Eagle.  AMY S. ROE, JENNIFER M. WONG, Dept. Env. Tox., Clemson Univ., Pendleton, SC; DAVID A. BEST, U.S. Fish & Wildl. Serv., East Lansing, MI; DENNIS BUSH, Michigan Dept. Env. Quality, Lansing, MI; JAMES G. SIKARSKIE, Coll. Vet. Med., Michigan State Univ., and WILLIAM BOWERMAN, Dept. Env. Tox., Clemson Univ.

621 *Bald Eagle nest placement and reproduction patterns in the northern Lower Peninsula of Michigan.  CARRIE R. STEEN and KELLY F. MILLENBAH, Dept. Fish. & Wildl., Michigan State Univ., East Lansing, MI.

622 *Spatial scale variability in wintering shorebird use of coastal wetland restoration sites.  ANNA R. ARMITAGE and JOY E. YOON, Dept. OBEE, Univ. California, Los Angeles, CA.

623 *Parasite fauna and their effects on condition in a natural population of a tropical passerine.  TERRY R. KRUEGER, Dept. Biol., Univ. Miami, Coral Gables, FL; JULIA V. RODRÍGUEZ and ANNA JIMI ÉNEZ, School Vet. Med., Nat. Univ. Costa Rica, Heredia, Costa Rica.

624 Multiple day constancy as an alternative to pooling in mark-recapture modeling to estimate stopover length.  SARA R. MORRIS, Dept. Biol., Canisius Coll., Buffalo, NY; DAVID A. LIEBNER, Dept. Biol. and Dept. Physics, ERICA M. TURNER, AMANDA M. LARRACUENTE, Dept. Biol., and H. DAVID
SHEETS, Dept. Physics.

625 Conservation of the Mississippi Sandhill Crane.  SCOTT G. HEREFORD, U.S. Fish & Wildl. Serv., Gautier, MS.

626 Optics for the tropics.  JONI ELLIS, Southeast Partners in Flight, Gainesville, FL.

627 Male song repertoire size and female choice in the Gray Catbird.  ERIC T. HAAS, ANDREW S. DOLBY, JENNIFER K. MILLER, CHARLES E. CLARKSON and KATRINA M. STECHLER, Dept. Biol. Sci., Mary Washington Coll., Fredericksburg, VA.

628 Nocturnal thermoregulation in the White-throated Sparrow. KATRINA M. STECHLER, ANDREW S. DOLBY, VANESSA S. DAVIS and JOHN G. TEMPLE, Dept. Biol. Sci., Mary Washington Coll., Fredericksburg, VA.

629 Altering forest management plans to accommodate rare or endangered species -- a positive example and approach.  KELLY J. McKAY, Midwest Biol. Res. & Monitoring Inst., Hampton, IL; JON W. STRAVERS, Midwest Raptor Res. Fund, McGregor, IA; GARY SWENSON, U.S. Army Corps Engin., Rock Island Dist., Pleasant Valley, IA.

630 Avian survey of the Savanna Ordnance Depot bottomlands, an Upper Mississippi River floodplain site.  KELLY J. McKAY, PETER C. PETERSEN and BRIAN L. BLEVINS, Midwest Biol. Res. & Monitoring Inst., Hampton, IL.

631 Using stable isotopes in bird feathers to enhance estimation of transition rates in multi-state capture-recapture models.  LARKIN A. POWELL, School Nat. Res. Sci., Univ. Nebraska, Lincoln, NE.

632 Nocturnal incubation by Wood Ducks during egg laying.  GARY R. HEPP, School For. & Wildl. Sci., Auburn Univ., Auburn, AL.

633 Dynamics of avian and arthropod communities across distinct vegetation zones in the Grand Canyon.  HELEN YARD, Helen Yard Consulting, Flagstaff, AZ, and NEIL COBB, Northern Arizona Univ., Flagstaff, AZ.

634 Does adult prey choice affect reproductive success in Acadian Flycatchers?  LASHALE D. PUGH and COURTENAY N. WILLIS, Dept. Biol., Youngstown State Univ., Youngstown, OH.

635 Dietary dynamics of Barn Owls in a stable environment.  CARL D. MARTI, Raptor Res. Center, Boise State Univ, Boise, ID.

636 Edge effects on bird abundance in a landscape undergoing ponderosa pine forest restoration.  JAMES BATIN and THOMAS D. SISK, Center Environ. Sci. & Edu., Northern Arizona Univ., Flagstaff, AZ.

637 "Forest-grown" yerba mate:  implications for the birds of Paraguay's Atlantic interior forest.  KRISTINA COCKLE and MARTY LEONARD, Biol. Dept., Dalhousie Univ., Halifax, NS.

638 DNA sexing methods in Northern Saw-Whet Owls and Flammulated Owls.  LYNDA LEPPERT, ALFRED DUFTY and SARAH HAMILTON, Biol. Dept., Univ. ID, Boise, ID.

639 Heterophil to lymphocyte ratios in migrating Northern Saw-Whet Owls.  ALFRED M. DUFTY, LYNDA L. LEPPERT, Biol. Dept., Boise St. Univ., Boise, ID, and SARAH L. HAMILTON, Biol. Dept., Univ. ID, Moscow, ID.

640 Molecular phylogenetics of Pyrrhura leucotis parakeets:  species limits and historical biogeography of Neotropical forests.  CAMILA C. RIBAS and CRISTINA Y. MIYAKI, Dept. Biol. Univ. Sao Paulo, Sao Paulo, Brazil.

641 *Suggestions on the choice of territory estimator in resource selection studies, using data on Cerulean Warblers.  JENNIFER J. BARG and RALEIGH J. ROBERTSON, Dept. Biol., Queen's Univ, Kingston, ON.

642 Characteristics of Cerulean Warbler territories in southern Indiana.  KAMAL ISLAM and CYNTHIA BASILE, Dept. Biol., Ball State Univ., Muncie, IN.

643 *Cerulean Warbler relative abundance and frequency of occurrence relative to large-scale edge. SCOTT B. BOSWORTH, Div. For., West Virginia Univ., Morgantown, WV; PETRA BOHALL WOOD, West Virginia Coop. Fish & Wildl. Res. Unit, West Virginia Univ., and RANDY DETTMERS, Div. Migratory Birds, US Fish & Wildl. Serv., Hadley, MA.

644 Effectiveness of Florida Burrowing Owl conservation measures.  KATHERIN L. HALEY, BRIAN A. MILLSAP, CINDY BEAR and ELIZABETH K. McCONNELL, Florida Fish & Wildl. Conserv. Comm., Tallahassee, FL.

645 *The impacts of land cover changes of reproductive habitats of Resplendent Quetzal on its distribution in southern Mexico.  SOFÍA SOLÓRZANO, Instituto de Ecología, Campus Morelia, UNAM. Michoacán, Mexico; MIGUEL ANGEL CASTILLO-SANTIAGO, DARIO NAVARRETE-GUTI ÉRREZ, ECOSUR, San Cristóbal de las Casas, Chiapas, Mexico, and KEN OYAMA, Instituto de Ecología, Campus Morelia, UNAM, Michoacán, Mexico.

646 Building nesting and roosting towers for Chimney Swifts.  PAUL D. KYLE and GEORGEAN Z. KYLE, Driftwood Wildl. Assoc., Austin, TX.

647 Barred Owl nesting ecology in suburban and rural habitats.  ERIC S. HARROLD and RICHARD O. BIERREGAARD, Dept. Biol., Univ. North Carolina, Charlotte, NC.

648 Band recovery data from fledgling Brown Pelicans on the Chandeleur Islands, Louisiana.  JAMES O. HARRIS, NANCY F. WALTERS and CHARLOTTE D. PARKER, Southeast Louisiana Refuges, U.S. Fish & Wildl. Serv., Slidell, LA.

649 Succession, herbivory and the ecology of fear:  implications for nest predation at the landscape level in the boreal forest.  KEITH P. LEWIS, Biopsychol. Programme, Memorial Univ. Newfoundland, St. John's, NF.

650 *Austral migration:  current state of knowledge and research needs, with preliminary data from a monitoring station in the Bolivian Chaco.  ALEX E. JAHN, Dept. Zool., Univ. Florida, Gainesville, FL; SUSAN E. DAVIS and ANA MARIA SAAVEDRA, Museo de Historia Natural Noel Kempff Mercado, Santa Cruz, Bolivia.

651 Conservation of the threatened seabird community of the Juan Fernandez Islands, Chile.  PETER J. HODUM, Dept. Biol. Sci., California State Univ.- Long Beach, Long Beach, CA; MICHELLE D. WAINSTEIN, Dept. Aquatic & Fish. Sci., Univ. Washington, Seattle, WA; and ERIN HAGEN, Univ. Washington.

652 The effect of winter food supplementation on the reproductive behavior of the Northern Cardinal.  THERESA L. RAFIQ, Univ. Pennsylvania, Philadelphia, PA; TIANA GUINARD and PETER MARRA, Smithsonian Environ. Res. Center, Edgewater, MD.

653 Call variation in island endemic subspecies of the Brown-throated Parakeet.  JESSICA R. EBERHARD, Cornell Lab. Ornithol., Ithaca, NY.

654 Isolation of a new Mycoplasma species from the tissues of Oriental White-backed Vulture in Pakistan and possible role in population collapse.  J. LINDSAY OAKS, SHANNON L. DONAHOE, Dept. Vet. Microbiol. & Path., Washington State Univ., Pullman, WA; MARTIN GILBERT, MUNIR Z. VIRANI, RICK WATSON, The Peregrine Fund, Boise, ID, and ALEEM AHMED KHAN, Ornithol. Soc. Pakistan, Dera Ghazi Khan, Pakistan.

655 Long-term trends of the breeding birds on Hog Island.  JENNIFER E. JOHNSON, Dept. Biol., Swarthmore Coll., Swarthmore, PA, and SCOTT WEIDENSAUL, Schuylkill Haven, PA.

656 California Condor reintroduction:  status and direction of the Arizona project.  ANDI S. ROGERS, Arizona Game & Fish Dept., Flagstaff, AZ; and CHRIS N. PARISH, The Peregrine Fund, Boise, ID.

657 The avian hematocrit:  what can it tell us about wild birds?  JEANNE M. FAIR and SHAYNA WHITAKER, Los Alamos Natl. Lab., Environ. Dynamics & Spatial Analysis, Los Alamos, NM.

658 Avian reproductive success in restored grasslands:  measuring the success of a restoration effort.  JOHN B. DUNNING, Jr., BRYAN WEE and ALEXANDRA HOUSTON, Dept. For. & Nat. Res., Purdue Univ., West Lafayette, IN.

659 Landscape changes and bird movements in the central Amazon.  CHERYL M. STRONG, Biol. Dynamics For. Frag. Project, Manaus, Brazil, and PHIL STOUFFER, Southeastern Louisiana Univ., Hammond, LA.

660 Dawn song as a sexual signal in the Acadian Flycatcher.  BONNIE E. WOOLFENDEN, BRIDGET J. M. STUTCHBURY, Dept. Biol., York Univ., Toronto, ON, and EUGENE, S. MORTON, Smithsonian Inst., Front Royal, VA.

661 Habitat selection of a declining warbler population:  the Canada Warbler in northern Vermont.  JAMESON CHACE, JAMES GILLIS, Biol. Dept., Villanova Univ., Villanova, PA, and STEVEN FACCIO, Cons. Biol. Dept., Vermont Inst. Nat. Sci., Woodstock.

662 Use of native and exotic plants by nesting Yellow-billed Cuckoos:  a tale of two rivers.  HIRA A. WALKER, Dept. Biol., Univ. New Mexico, Albuquerque, NM, SCOTT H. STOLESON, DEBORAH M. FINCH, JEFF KELLY, USDA For. Serv., Rocky Mountain Res. Sta., Albuquerque, NM.

663 A preliminary analysis of the geographic distribution and habitat use of the Black-capped Vireo on the winter range in western Mexico.  R. A. POWELL, R. D. SLACK, Dept. Wildl. & Fish. Sci., Texas A & M Univ., College Station, TX; and C. FARQUHAR, Wildl. Divers. Prog., Texas Parks & Wildl. Dept., Austin, TX.
14664 Do we need corridors to enhance bird movement between forest fragments?  MIGUEL ÂNGELO MARINI, Dept. Zoologia, Univ. Brasília, Brasília, DF, Brazil; RÔMULO RIBON and RENATA D. ANDRADE, Ecol. Cons. Man. Vida Silv., Univ. Fed. Minas Gerais, Belo Horizonte, MG, Brazil.

665 A comparison of historic and current distribution of spruce grouse in the Adirondack Mountains.  GLENN JOHNSON, ANGELENA  ROSS, AMY HOLLISTER, Dept. Biol., SUNY Potsdam, Potsdam, NY; and JOHN OZARD, New York State Dept. Environ. Conserv., Albany, NY.

666 Estrogen may play an immuno-protective role in female House Finches exposed to Mycoplasma gallisepticum.  KRISTY L. FARMER, PAUL M. NOLAN, GEOFFREY E. HILL and SHARON R. ROBERTS, Dept. Biol. Sci., Auburn Univ., Auburn, AL.

667 Diet breadth and altitudinal migration in Costa Rican frugivorous birds.  ALICE BOYLE, Dept. Ecol. & Evol. Biol., Univ. Arizona, Tucson, AZ.

668 Diets of Lesser Scaup during spring migration:  has there been a decline in preferred forage in the Mississippi Flyway?  MICHAEL J. ANTEAU and ALAN D. AFTON, USGS Louisiana Coop. Fish & Wildl. Unit, Louisiana State Univ., Baton Rouge, LA.

669 Sandgrouse shooting in the Northern Cape Province, South Africa.  MARK D. ANDERSON, Dept. Agric., Land Reform, Env. & Cons., Kimberley, South Africa.

670 The coastal plain of Chiapas:  a migratory pathway with opportunities for conservation stopover habitat for migratory raptor.  EFRAIN CASTILLEJOS-CASTELLANOS, Pronatura Chiapas, San Cristóbal de Las Casas Chiapas, México.

671 *Influence of weather conditions and migrant density on migration patterns of Northern Saw-whet Owls.  DAVID M. WHALEN, Dept. Biol., Univ. New Mexico, Albuquerque, NM; and BRYAN D. WATTS, Center Cons. Biol., Coll, William & Mary, Williamsburg, VA.

672 Weather, reproductive success, and population dynamics in a Song Sparrow population over 21 years.  MARY K. CHASE, NADAV NUR and GEOFFREY R. GEUPEL, Point Reyes Bird Observ., Stinson Beach, CA.

673 Feeding ecology of insectivorous birds in Brazilian Atlantic forest.  RENATA DURÃES, Dept. Biol., Univ. Missouri-St. Louis, Saint Louis, MO, and MIGUEL ÂNGELO MARINI, Univ. Brasília, DF, Brazil.

674 Mortality and population collapse of Oriental White-backed Vulture in Pakistan.  MUNIR Z VIRANI, MARTIN GILBERT, RICK WATSON, The Peregrine Fund, Boise, ID; ALEEM A. KHAN, BZ Univ., Multan, Punjab, Pakistan; LINDSAY OAKS, Dept. Vet. Microbiol. & Path., Washington State Univ., Pullman, WA; JAMSHED CHAUDHRY, SHAKEEL AHMED, MUHAMMAD ARSHAD, SHAHID MAHMOOD and AHMAD ALI, BZ Univ.

675 Fall waterfowl migrations captured by radar along the Illinois River.  ANDREA M. CAMPERO, ROBERT H. DIEHL, Dept. Animal Biol., Univ. Illinois Urbana-Champaign, Champaign, IL, and RONALD P. LARKIN, Illinois Nat. Hist. Surv., Champaign, IL.

676 Winter bird use of the invasive Chinese tallow trees in Louisiana.  MICHAEL J. BALDWIN, WYLIE C. BARROW, Jr., CLINT JESKE, USGS, Natl. Wetlands Res. Center, Lafayette, LA, and VERNON WRIGHT, School Renew. Nat. Res., Louisiana State Univ., Baton Rouge, LA.

677 Distribution, abundance, and breeding biology of White Terns on Oahu, Hawaii.  ERIC A. VANDERWERF, U.S. Fish & Wildl. Serv., Honolulu, HI.

678 Species and sex differences in egg-pecking behavior between parasitic and non-parasitic cowbirds. PAULO E. LLAMBÍAS, VALENTINA FERRETTI and JUAN REBOREDA, Biol. Sci., Univ. Buenos Aires, Buenos Aires, Argentina.

679 Reproductive output, nestling growth and diet of Lilac-crowned Parrots in tropical dry forest. ALEJANDRO SALINAS-0MELGOZA, KATHERINE RENTON and TANIA SANCHEZ. Inst. Biol., UNAM, Mexico.

680 Pre-fledging growth rates of Common Nighthawks.  BRETT K. SANDERCOCK, Div. Biol., Kansas State Univ., Manhattan, KS.

681 A preliminary look at the use of remote cameras to assess diet of nesting Ferruginous Pygmy-Owls in southern Arizona.  SHAWN F. LOWERY, SARAH J. LANTZ and MICHAEL F. INGRALDI, Research Branch, Arizona Game & Fish Dept., Phoenix, AZ.

682 Recent divergence between Baltimore and Black-backed orioles: did the Baltimore Oriole evolve from a Mexican ancestor?  BEATRICE KONDO and KEVIN E. OMLAND, Dept.  Biol. Sci., Univ. Maryland, Baltimore Co., Baltimore, MD.

683 The adrenocortical response to handling stress in breeding Adélie Penguins:  effects of breeding stage, body mass and intensity of human visitation.  CAROL M. VLECK, Prog. Ecol. & Evol. Biol., Iowa State Univ., Ames IA; and THERESA L. BUCHER, Dept. Biol., Univ. California, Los Angeles, CA.

684 Effects of silvicultural intensity on Pileated Woodpecker presence and foraging patterns.  JÉRÔME LEMAÎTRE and MARC-ANDRÉ VILLARD, Chaire de recherche du Canada en conservation des paysages and Département de biologie, Université de Moncton, Moncton, NB.

685 Reintroduction of Brown-headed Nuthatches and Eastern Bluebirds to Everglades National Park: methodology and factors associated with success.  GARY L. SLATER, Ecostudies Inst., Mount Vernon, WA; KENNETH D. MEYER, ARC Inst., Inc., Gainesville, FL, and SKIP SNOW, Everglades Natl. Park, Homestead, FL.

686 Agricultural vs. natural habitat use by wintering raptors in south Florida.  ELISE VERNON PEARLSTINE, FRANK J. MAZZOTTI and CHRIS J. DEREN, Everglades Res. & Edu. Center, Univ. Florida, Belle Glade, FL.

687 Winter observations of Great Lakes' Piping Plovers 1995 - 2001:  conservation and management implications.  JENNIFER H. STUCKER, FRANCESCA J. CUTHBERT, Dept. Fish. Wildl. and Conserv. Biol., Univ. Minnesota, St. Paul, MN, LAUREN C. WEMMER, Conserv. Biol. Prog., Univ. Minnesota, and BRAD WINN, Georgia Dept. Nat. Res., Brunswick, GA.

688 The return of Yellow-shouldered Blackbirds to natural nesting substrates.  WILLIAM V. DELUCA, Smithsonian Environ. Res. Center, Edgewater, MD, DEREK HENGSTENBERG, Dept. Wildl. & Fish., Mississippi State Univ., Mississippi State, MS, and LEONARD REITSMA, Dept. Nat. Sci., Plymouth State Coll., Plymouth, NH.

689 Observations of song modes in the American Redstart:  is a reevaluation of function necessary?  RACHEL T. BRU, ROBERT J. SMITH and FRANK R. MOORE, Dept. Biol. Sci., Univ. Southern Mississippi, Hattiesburg, MS.

690 Demography of the endangered Ferruginous Pygmy-Owl of southern Arizona.  MICHAEL F. INGRALDI, DENNIS J. ABBATE and RENEE L. WILCOX, Research Branch, Arizona Game & Fish Dept., Phoenix, AZ.

691 Age-related reproductive success of the Laysan Albatross.  FRANS JUOLA, Dept. Biol. & Progr. Anim. Behav., Bucknell Univ., Lewisburg, PA; ANGELA D. ANDERS, Progr. Ecol., Pennsylvania State Univ., State College, PA; and DONALD C. DEARBORN, Dept. Biol. & Progr. Anim. Behav., Bucknell Univ.

692 Demography of Acadian Flycatchers in the Blue Ridge Mountains of Virginia.  PETER T. FAUTH, Dept. Biol., Hartwick Coll., Oneonta, NY, and PAUL R. CABE, Biol. Dept., Washington & Lee Univ., Lexington, VA.

693 Population genetics of the Brewer’s Sparrow.  EMILY K. CROTEAU, STEPHEN C. LOUGHEED, Dept. Biol., Queen's Univ., Kingston, ON; J. DAVILA, Instituto de Investigacion en Recursos Cinegeticos (IREC), Ciudad Real, Spain; P. KRANNITZ, Canadian Wildl. Serv., Delta, BC, N. MAHONY, Centre App. Conserv. Biol., Univ. British Colombia, Vancouver, BC, and PETER T. BOAG, Dept. Biol., Queen's Univ.

694 Deciphering the tempo of biotic diversification:  biogeographic patterns and the historical assembly of the South American avifauna.  ANA LUZ PORZECANSKI and JOEL CRACRAFT, Am. Mus. Nat. Hist., New York, NY, and Dept. Ecol. Evol. & Env. Biol., Columbia Univ., New York, NY.

695 Missing on Maui and waning on Oahu:  phylogeography of the Elepaio.  SARAH L. BURGESS, Prog. EEC Biol., Univ. Hawaii, Honolulu, HI.

696 Sex ratios of nestling House Wrens vary with brood order.  E. DALE KENNEDY, KAMI MARSACK, NATHANIEL A. SOWA and DOUGLAS W. WHITE, Biol. Dept., Albion Coll, Albion, MI.

697 Comparison of predation rates and predators between real and artificial Swainson's Thrush nests.  REBECCA PIERCE RALL and T. LUKE GEORGE, Dept. Wildl., Humboldt State Univ., Arcata, CA.

698 Variation in mass and energetic condition of Neotropical migrants during stopover at farmstead woodlot sites in southeastern South Dakota.  H. A. CARLISLE, E. T. LIKNES and D. L. SWANSON, Dept. Biol., Univ. South Dakota, Vermillion, SD.

699 Influence of community succession on brood parasitism and nest depredation in the Black-capped Vireo.  C. CRAIG FARQUHAR, Texas Parks & Wildl. Dept., Austin, TX; ERIC KELCHLIN, Columbia Natl. Wildl. Refuge, Othelo, WA, AMY PORTER, Bellevue, WA and CASEY RICHART, Centralia, WA.

700 Atlas of breeding birds in Cuba.  BÁRBARA SÁNCHEZ, ARTURO HERNÁNDEZ, PEDRO BLANCO, Instituto de Ecología y Sistemática, CITMA, La Habana, Cuba; JAMES WILEY, USGS, Maryland Coop. Fish & Wildl. Res. Unit, Princess Anne, MD; FRANCISCO CEJAS, ADELA HERRERA and LÁZARO RODRÍGUEZ, Instituto de Ecología y Sistemática.

701 Conservation status of Townsend's Shearwater. JUAN E. MARTÍNEZ-GÓMEZ, Dept. Biol., Univ. Missouri, Saint Louis MO, and JEFF K. JACOBSEN, Humboldt State Univ., Arcata CA.

702 *Stable isotope tracking - in search of "Canadian" Burrowing Owls in Mexico and Texas.  J. M. DUXBURY, Dept. Renew. Res., Univ. Alberta, Edmonton, AB; G. L. HOLROYD, Canadian Wildl. Serv., Environment Canada, Edmonton, AB, and K. MUEHLENBACHS, Dept. Earth & Atmospheric Sci., Univ. Alberta, Edmonton, AB.

703 *Mate attraction and paternal care in the House Wren.  NATALIE S. DUBOIS, Dept. Zool. and W. K. Kellogg Biol. Sta., Michigan State Univ., Hickory Corners, MI; E. DALE KENNEDY, Biol. Dept., Albion Coll., Albion, MI; and THOMAS GETTY, Dept. Zool. and W. K. Kellogg Biol. Sta., Michigan State Univ., Hickory Corners, MI.

704 The evolution of plumage dichromatism in dabbling ducks:  rejection of the widely accepted scenario. MICHAEL D. SORENSON, RYAN H. HARRIGAN, Dept. Biol., Boston Univ., Boston, MA; and KEVIN P. JOHNSON, Illinois Nat. Hist. Surv., Champaign, IL.

705 Factors influencing ptarmigan population cycles in Newfoundland.  ELLEN JEDREY, W. A. MONTEVECCHI, Biopsychol. Prog., Memorial Univ. Newfoundland, St. John’s, NF, S. MAHONEY, M. McGRATH, Sci. Div., Dept. Tour., Rec. & Culture, St. John’s, NF, G. LEONARD and A. MURLEY, Dept. Forestry & Agrifoods, Pasadena, NF.

706 Retention of host defenses in the absence of avian brood parasitism.  BRIAN D. PEER, STEPHEN I. ROTHSTEIN, and MICHAEL J. KUEHN, Dept. Ecol., Evol. & Marine Biol., Univ. California, Santa Barbara, CA.

707 Wild birds and fenthion:  a deadly mix.  PATRICIA R. BRIGHT, MICHAEL J. PARR and GAVIN SHIRE, American Bird Conservancy, Washington, DC.

708 Composition and habitat associations of bird communities in urban parks.  JOAN L. MORRISON, JESSICA A. BIRNBAUM, PAULA M. CIASTKO and CHRISTOPHER M. GEREMIA, Dept. Biol., Trinity Coll., Hartford, CT.

709 *Detecting threshold ranges in the effects of silvicultural intensity on presence and reproductive activity of mature forest songbirds.  JEAN-SÉBASTIEN GUÉNETTE and MARC-ANDRÉ VILLARD, Chaire de recherche du Canada en conservation des paysages and Département de biologie, Université de Moncton, Moncton, NB.

710 vacant

711 Nest attentiveness patterns in Wood Thrushes.  KIM C. DERRICKSON, Dept. Biol., Loyola Coll., Baltimore, MD.

712 vacant

713 Sex ratio bias at hatching in the Roseate Tern differs between colonies.  PATRICIA SZCZYS and RICHARD KESSELI Dept. Biol., Univ. Mass.-Boston, Boston, MA.

714 Associations of instream flow alterations and land use impacts with bird community structure in a southwestern riparian community.  ELISABETH M. AMMON, Dept. Biol., Univ. Nevada, Reno, NV, and DAMIAN FAGAN, The Nature Conservancy's Moab Proj. Office, Moab, UT.

715 Reproductive success of riparian songbirds in southern Oregon:  potential source and sink habitats.  JEANNIE M. HELTZEL, Hart Mountain Natl. Antelope Refuge, Plush, OR, and SUSAN L. EARNST, USGS Snake River Field Sta., Boise, ID.

716 Effects of Hurricane Georges on the composition, abundance, and survival of winter residents in the Guanica Forest of southwest Puerto Rico.  JOHN FAABORG, Div. Biol. Sci., Univ. Missouri, Columbia, MO; KATIE DUGGER, Dept. Wildl. Biol, Oregon State Univ., Corvallis, OR; and WAYNE J. ARENDT, USDA For. Serv., IITF/Sabana Field Res. Sta., Palmer, PR.

717 Species or host races?  direct estimate of hybridization in sympatric indigobirds.  CHRISTOPHER N. BALAKRISHNAN, KRISTINA M. SEFC and MICHAEL D. SORENSON, Dept. Biol., Boston Univ., Boston, MA.

718 *The influence of prey choice and food quality on reproductive performance in an Arctic Tern population.  CHRISTINA J. MARANTO, Dept. Ecol. & Evol. Biol., Univ. California, Irvine, CA.

719 Influence of the flora and vegetative structure on populations of terrestrial birds on Cayo Coco, Cuba.  DAYSI RODRÍGUEZ, ALFREDO GUTIERREZ and BÁRBARA SÁNCHEZ, Instituto de Ecología y Sistemática, CITMA, La Habana, Cuba.

720 The effect of avian malaria on the breeding success of Hawaii Amakihi (Hemignathus virens).  A. MARM KILPATRICK, Dept. Biol., Univ. Wisconsin, Madison, WI., DENNIS LaPOINTE, CARTER T. ATKINSON and JULIE K. LEASE, USGS-BRD Pacific Island Ecosys, Res, Center, Hawaii Natl. Park, HI.

721 Investigating the cause of AVM in Bald Eagles and waterfowl.  ANNA H. BIRRENKOTT, Dept. Environ. Tox., Clemson Univ., Pendleton, SC; JOHN J. HAINS, USACE, Calhoun Falls, SC; SUSAN B. WILDE, Baruch Inst., Univ. South Carolina, Charleston, SC; JOHN R. FISCHER, Southeastern Coop. Wildl. Dis. Study, Univ. Georgia, Athens, GA; THOMAS M. MURPHY, Wildl. Div., South Carolina Dept. Nat. Res., Green Pond, SC; and WILLIAM W. BOWERMAN, Clemson Univ.

722 Conservation strategies for three populations of Burrowing Owls in New Mexico.  CAROL A. FINLEY, Hawks Aloft, Albuquerque, NM; M. HILDEGARD REISER, 49th CES/CEV, Holloman AFB, NM; PATRICIA C. ARROWOOD, Dept. Fish. & Wildl., New Mexico State Univ., Las Cruces, NM; BOBBY DOW, 377 SPTG/CEVQ, Kirtland AFB, NM; and KRISTINE JOHNSON, Biol. Dept, Univ. New Mexico, Albuquerque, NM.

723 vacant

724 Fatty acid composition of depot fat in Arctic-nesting shorebirds during spring migration.  DAVID A. RINTOUL, Biol. Div., Kansas State Univ., Manhattan KS, and JAMES RIVERS, Kansas Coop. Fish & Wildl. Res. Unit, Biology Div., Kansas State Univ.

725 *Importance of habitat characteristics at multiple scales on the nest success of the Prothonotary Warbler.  JILL GANNON and ROBERT J. COOPER, Warnell School For. Res., Univ.Georgia, Athens, GA.

726 Vacant.

727 Do aspen stands influence productivity of ponderosa pine forest birds

 JILL D. CLIFTON and PAUL BEIER, For. Dept., Northern Arizona Univ., Flagstaff, AZ.

728 The habitat concept in ornithology revisited.  MATTHEW D. JOHNSON, Dept. Wildl., Humboldt State Univ., Arcata, CA.

729 A comparison of nocturnal call counts of migrating birds and reflectivity measurements on Doppler radar (WSR-88D).  ANDREW FARNSWORTH, Nat. Audubon Soc., New York, NY; SIDNEY A. GAUTHREAUX, Dept. Biol. Sci., Clemson Univ., Clemson, SC; and DONALD VAN BLARICOM, Strom Thurmond Inst., Clemson Univ., Clemson, SC.

730 Guidelines to prevent violation of the Migratory Bird Treaty Act.  THOMAS P. RYAN, JOANNA CEZNIAK, ROBIN E. DAKIN, DAVID L. PLUMPTON and SCOTT B. TERRILL, H. T. Harvey & Associates., San Jose, CA.

731 Behavioral support for genetic benefits of extra-pair copulations by female Waved Albatrosses.  KATHRYN P. HUYVAERT and PATRICIA G. PARKER, Dept. Biol., Univ. Missouri-St. Louis, St. Louis, MO.

732 Fifty-year changes in breeding bird populations on the Allegheny Plateau.  CHANDLER S. ROBBINS and BARBARA A. DOWELL, USGS Patuxent Wildl. Res. Center, Laurel, MD.

733 Abundance and diversity of birds over an elevational gradient in the Sierra Nevada.  KATHRYN L. PURCELL and DOUGLAS A. DRYNAN, USDA For. Serv., Pacific Southwest Res. Sta., Sierra Nevada Res. Center, Fresno, CA.

734 Estimating population size and setting conservation targets for North American land birds.  KENNETH V. ROSENBERG, Cornell Lab. Ornithol., Ithaca, NY, PETER J. BLANCHER, Bird Studies Canada, Ottawa, ON, and JEFFREY V. WELLS, Natl. Audubon Soc.

735 Habitat and nesting success in mixed-grass prairie:  does it really matter where you put your basket?  J. SCOTT DIENI, Redstart Consulting, Evergreen, CO, STEPHANIE L. JONES, USFWS, Nongame Migratory Bird Program, Denver, CO, and PAULA GOUSE, US Fish & Wildl. Serv., Bowdoin Natl. Wildl. Refuge, Malta, MT.

736 Models for evaluating Peregrine Falcon breeding habitat in West Greenland.  C. WIGHTMAN, Raptor Res. Center, Boise State Univ., Boise, ID, and M. FULLER, US Geol. Surv., Boise, ID.

737 Trophic cascades and bird communities:  how the loss of grizzly bears and wolves can affect the diversity of riparian birds.  PETER B. STACEY, Dept. Biol., Univ. New Mexico, Albuquerque, NM; and JOEL BERGER, Wildl. Conserv. Soc., Teton Field Office, Moose WY.

738 Habitat use of the Three-toed Woodpecker during the breeding period.  PETER PECHACEK and WERNER d OLEIRE-OLTMANNS, Nationalparkverwaltung, Berchtesgaden, Germany.

739 Molecular systematics of the genus Accipiter:  a preliminary analysis.  JOSHUA M. HULL, Dept. Biol., Sonoma State Univ., Rohnert Park, CA, and Golden Gate Raptor Observatory, Sausalito, CA, and DEREK GIRMAN, Dept. Biol., Sonoma State Univ.

740 Studies on West Nile Virus in migratory birds at Eilat, Israel.  REUVEN YOSEF, Internatl. Birding & Res. Centre in Eilat, Eilat, Israel, MERTYN MALKINSON, Kimron Vet. Inst., Bet Dagan, Israel, and RONI KING, Nature Reserves & Parks Authority, Jerusalem, Israel.

741 Use of counts and banding in detecting changes in songbird population during migration.  SCOTT SOMERSHOE, USGS-Patuxent Wildl. Res. Center, Vicksburg, MS, and C. RAY CHANDLER, Dept. Biol., Georgia Southern Univ., Statesboro, GA.

742 Habitat use by Swainson's Warblers in a managed bottomland forest.  SCOTT SOMERSHOE, USGS-Patuxent Wildl. Res. Center, Vicksburg, MS; STEVEN HUDMAN, Dept. Biol., Univ. Vermont, Burlington, VT, and C. RAY CHANDLER, Dept. Biol., Georgia Southern Univ., Statesboro, GA.

743 Lead effects on neurobehavioral development in gulls.  JOANNA BURGER, Div. Life Sci., Rutgers Univ., Piscataway, NJ, and MICHAEL GOCHFELD, Environ. & Community Medicine, UMDNJ-Robert Wood Johnson Med. School, Piscataway, NJ.

744 The European Endangered Species Programme for the Indian White-backed Vulture Gyps bengalensis: current status and future potential.  CAMPBELL MURN, The Hawk Conservancy Trust, Andover, Hampshire, England.

745 Influence of age and dispersal on reproductive success in Cliff Swallows.  KARL L. KOSCIUCH, KEITH A. ARNOLD, TRACEY N. JOHNSON and PATRICIA J. SIKES, Dept. Wildl. & Fish. Sci., Texas A&M Univ., College Station, TX.

746 Piping Plover biology and conservation at Lake Diefenbaker, Saskatchewan.  J. PAUL GOOSSEN and SHARILYN M. WESTWORTH, Canadian Wildl. Serv., Edmonton, AB.
 

08:00  Continental Breakfast, Hotel Inter-Continental, Third Floor

09:00 Plenary 4 (LaSalle BC; and video feed to Pan-Am Auditorium for overflow crowd). Migratory orientation:  development and adaptive plasticity.  KENNETH P. ABLE, Dept. Biol. Sci., Univ. at Albany, SUNY, Albany, NY.

10:00  Coffee Break, Hotel Inter-Continental, Third Floor

Symposium O (Poydras).  CIPAMEX symposium.

10:30 S116 Research and conservation efforts in Mexico:  an overview.  MAURICIO CERVANTES-ABREGO, CIPAMEX.

10:45 S117 The IBA's program in Mexico, current status and reorganization.  JOSÉ MANUEL GALINDO-JARAMILLO, CIPAMEX/International Consultant.

11:00 S118 Assessing the status of bird species in Mexico.  PATRICIA ESCALANTE and VERONICA NÉQUIZ, Inst. Biol. UNAM, Mexico City, Mexico.

11:15 S119 PROAVES:  Threatened birds and their habitats in Mexico conservation program.  JOSE L. ALCANTARA, CIPAMEX/Colegio de Postgraduados, Mexico, and M. CERVANTES-ABREGO,  CIPAMEX.

11:30 S120 Implementation of the North American Bird Conservation Initiative (NABCI), a model of tri-national integrated cooperation.  HUMBERTO BERLANGA, NABCI-Mexico National Coordinator,Mexico City, Mexico.

11:45 S121 Avian species conservation assessment for Mexican birds: an integration of the North American avifauna.  EDUARDO E. IÑIGO-ELIAS, Cornell Lab.  Ornithol., Ithaca, NY; H. BERLANGANABCI-Mexico-CONABIO; and K. ROSENBERG, Partners in Flight and Cornell Lab. Ornithol.

12:00 S122 Towards improved ornithological communication in Mexico:  HUITZIL, Journal of Mexican Ornithology and Database of Ornithologists working in Mexico.  RAUL ORTIZ-PULIDO, Centro de Investigaciones Biologicas, Universidad Autonoma del Estado de Hidalgo, Mexico.

Session 10C (Cabildo).  Conservation.  Nathalie J. Hamel, chair.

10:30 327 *Passeriformes trade in Mexico:  a challenge for conservation.  XAVIER LÓPEZ-MEDELLÍN, Facultad de Ciencias, UNAM, and EDUARDO E.  IÑIGO-ELIAS, Cornell Lab. Ornithol., Ithaca, NY.

10:45 328 Empirical evidence explaining high avian diversity in the tropics.  DOUGLAS A. JAMES, Dept. Biol. Sci., Univ. Arkansas, Fayetteville, AR.

11:00 329 *Is there a (by)catch?  spatio-temporal overlap of Common Murres and gillnet fishing in Washington.  NATHALIE J. HAMEL, School Aquatic & Fish. Sci., Univ. Washington, Seattle, WA.

11:15 330 *Landowner influences on birds across rural-to-urban landscapes.  CHRISTOPHER A. LEPCZYK, Dept. Fish. & Wildl., Michigan State Univ., East Lansing, MI.

11:30 331 *The relative importance of local vegetation and landscape pattern to Seattle's native bird communities.  ROARKE DONNELLY and JOHN MARZLUFF, Coll. For. Res., Univ. Washington, Seattle, WA.

11:45 332 *Songbird responses to management of a midwestern riparian floodplain. THOMAS J. BENSON, Dept. Animal Ecol., Iowa State Univ., Ames, IA.

12:00 333 *Effects of management activities on upland nesting waterfowl and  American Bitterns.  CASEY ARMOUR, Biol. Dept., Univ. North Dakota,  Grand Forks, ND.

12:15 334 Distribution and abundance of colonial waterbirds nesting in south Louisiana, 2001.  THOMAS C. MICHOT, CLINTON W. JESKE, USGS, Natl. Wetlands Res. Ctr., Lafayette, LA; JOYCE C. MAZOUREK and WILLIAM VERMILLION, US Fish & Wildl. Serv., Lafayette, LA.

Session 10D (Pan-Am auditorium).  Migration.  David N. Bonter, chair.

10:30 335 *Differential migratory timing of male and female Western Sandpipers on the southward migration.  AMANDA C. NIEHAUS, DAVID B. LANK and RON C. YDENBERG, Dept. Biol. Sci., Simon Fraser Univ., Burnaby, BC.

10:45 336 Effects of blood sampling on survival and fecundity of a Nearctic - Neotropical migratory songbird.  T. SCOTT SILLETT, Smithsonian Migratory Bird Center, Natl. Zool. Park, Washington, DC; JAMES D. NICHOLS, JAMES E. HINES, Patuxent Wildl. Res. Center, U.S. Geol. Surv., Laurel, MD; MICHAEL S. WEBSTER, School Biol. Sci., Washington State Univ., Pullman, WA; and RICHARD T. HOLMES; Dept. Biol. Sci., Dartmouth Coll., Hanover, NH.

11:00 337 *Selection of stopover habitat by fall trans-gulf migrant landbirds in the Yucatan Peninsula.  JILL L. DEPPE, Dept. Biol., Univ. California, Riverside, CA.

11:15 338 *Divergent migration directions in the Great Lakes basin:  the result of atmospheric circulation?  DAVID N. BONTER, Vermont Coop. Fish & Wildl. Res. Unit, Univ. Vermont, Burlington, VT, SIDNEY A. GAUTHREAUX, Dept. Biol., Clemson Univ., Clemson, SC, and THERESE M. DONOVAN, Vermont Coop. Fish & Wildl. Res. Unit.

11:30 339 *Nutrient reserves of Lesser Scaup during spring migration in the Mississippi Flyway:  a test of the spring condition hypothesis.  MICHAEL J. ANTEAU and ALAN D. AFTON, USGS Louisiana Coop. Fish & Wildl. Res. Unit, Louisiana State Univ., Baton Rouge, LA.

11:45 340 *Where do Yellow Warblers go?  an application of genetic markers as a tool to assess migratory connectivity among breeding and wintering grounds.  MARYLENE BOULET, Dept. Biol., McMaster Univ., Hamilton, ON; H. LISLE GIBBS, Dept. Evol., Ecol. & Org. Biol., Ohio State Univ., Columbus, OH; and KEITH A. HOBSON, Prairie and Northern Res. Centre, Canadian Wildl. Serv., Saskatoon, SK.

12:00 341 *Differential migration among long-distance migratory birds.  OLIVER KOMAR, Nat. Hist. Mus. and Dept. Ecol. & Evol. Biol., Univ. Kansas, Lawrence, KS; and BRIAN J. O'SHEA, Field Mus., Chicago, IL.

12:15 342 *The evolution of migration in the Motacillidae.  DIANA C. OUTLAW and GARY VOELKER, Barrick Mus., Univ. Nevada, Las Vegas, NV.

Session 10E (Pontalba).  Ecology.  John C. Withey, chair.

10:30 343 Changing patterns in a Black-capped Chickadee population.  SUSAN M. SMITH, Mount Holyoke Coll., South Hadley, MA.

10:45 344 *Diversity and occurrence of boreal migrant songbirds in the Darien Region, Choco, northwestern Colombia: a migration monitoring program initiative.  GABRIEL J. COLORADO, Dept. For. Sci., Univ. Nal. Colombia, and PAULA A. SUCERQUIA, Geo. Dept, Univ. Eafit, Colombia.

11:00 345 *Relating food availability, diet, and foraging behavior of autumn passerine migrants in Idaho.  JAY D. CARLISLE, Dept. Biol., Univ. South Dakota, Vermillion, SD, and Idaho Bird Observatory, Boise, ID.

11:15 346 *Do adolescent crows become young urban crows?  juvenile dispersal of American Crows across a gradient of urbanization.  JOHN C. WITHEY and JOHN M. MARZLUFF, Coll. For. Res., Univ. Washington, Seattle, WA.

11:30 347 Dispersal of the San Clemente Sage Sparrow.  NICOLE MUNKWITZ, Inst. Wildl. Stud., Arcata, CA; T. LUKE GEORGE, FREDERIC BEAUDRY, Dept. Nat. Res., Humboldt State Univ., Arcata, CA; and DAVID K. GARCELON, Inst. Wildl. Stud., Arcata, CA.

11:45 348 Are Eurasian Collared-Doves occupying an empty niche in North America?  WESLEY M. HOCHACHKA and MELINDA S. LaBRANCHE, Lab. Ornithol., Cornell Univ., Ithaca, NY.

12:00 349 Diurnal habitat use by American Woodcock wintering in east Texas.  JEFFREY P. DUGUAY, CODY B. BERRY and R. MONTAGUE WHITING, Jr., Arthur Temple Coll. For., Stephen F. Austin State Univ., Nacogdoches, TX.

12:15 350 Intraspecific territoriality and site fidelity of wintering Willow Flycatchers in Costa Rica.  THOMAS J. KORONKIEWICZ, MARK K. SOGGE and CHARLES VAN RIPER III, USGS/FRESC Colorado Plateau Field Sta., Northern Arizona Univ., Flagstaff, AZ.
 

Session 10F (LaSalle - B).  Breeding biology.  Ralph S. Hames, chair.

10:30 351 A test of the heterozygosity theory of mate choice in the Black-throated Blue Warbler.  SARAH A. BARTOS, MICHAEL S. WEBSTER, School Biol. Sci., Washington State Univ., Pullman, WA; and RICHARD T. HOLMES, Dept. Biol. Sci., Dartmouth Coll., Hanover NH.

10:45 352 Determinants of brood desertion in the monogamous Western Sandpiper.  JULIETTE  A. NEVILLE, Dept. Biol. & Wild., Univ. Alaska Fairbanks, Fairbanks, AK.

11:00 353 *Predation-induced renesting influences maternal and nestling condition.  DANA L. MORRIS and JOHN FAABORG, Div. Biol. Sci., Univ. Missouri, Columbia, MO.

11:15 354 Effects of acid rain and forest fragmentation on multiple-year breeding-site occupation by the Wood Thrush.  RALPH S. HAMES, KENNETH V. ROSENBERG, JAMES D. LOWE, SARA E. BARKER and ANDRÉ A. DHONDT, Lab. Ornithol., Cornell Univ., Ithaca, NY.

11:30 355 *Effects of habitat quality on the reproductive success of the Brown-headed Nuthatch.  L. LYNNETTE BROCK, D. BRENT BURT, Dept. Biol, S. F. Austin State Univ., Nacogdoches, TX; DEAN W. COBLE, Coll. For., S. F. Austin State Univ., and RICHARD N. CONNER, Southern Res. Sta., USFS, Nacogdoches, TX.

11:45 356 Mating systems and behaviour of tropical flycatchers.  BRIDGET J. M. STUTCHBURY, Dept. Biol., York Univ., Toronto, ON, EUGENE S. MORTON, Cons. Research Ctr., Smithsonian Inst., Front Royal, VA, and JAMES S. QUINN, Dept. Biology, McMaster Univ., Hamilton, ON.

12:00 357 Nestling feeding and attendance rates in cooperatively breeding groups of American Crows.  TIFFANY J. WESTON and CAROLEE CAFFREY, Dept. Zool., Oklahoma State Univ., Stillwater, OK.

12:15 358 Nesting territories and nest site selection in Pacific and American Golden-Plovers at Nome, Alaska.  PHILLIP L. BRUNER, ANDREA E. BRUNER and ROBERT N. WINGET, Dept. Biol., Brigham Young Univ. Hawaii, Laie, HI.

Session 10G (LaSalle - C).  Forest ecology.  Gerald Niemi, chair.

10:30 359 Biodiversity distribution of breeding bird communities in forests.  GERALD  NIEMI, NICK DANZ, JOANN HANOWSKI,  MALCOLM JONES and JAMES LIND, Nat. Resources  Res. Inst., Univ. Minnesota, Duluth, MN.

10:45 360 Effects of forest management practices on avian community structure.  DONALD B. MILES and TERESA DENNIS, Dept. Biol. Sci., Ohio Univ., Athens, OH.

11:00 361 Understory bird community in a humid montane forest in Chiapas, Mexico.  TOM WILL, U.S. Fish & Wildl. Serv., Fort Snelling, MN; JOSE LUIS RANGEL SALAZAR and PAULA L. ENRIQUEZ ROCHA, El Colegio de la Frontera Sur, San Cristobal de Las Casas, Mexico.

11:15 362 Adaptation on islands:  crossbills and lodgepole pine.  ADAM M. SIEPIELSKI and  CRAIG W. BENKMAN, Dept. Biol., New Mexico State Univ. Las Cruces, NM.

11:30 363 Effects of height and vegetation on success of bird nests in maritime forests.  SHARON DeFALCO, Endang. & Nongame Species Prog., New Jersey Fish &Wildl., Trenton, NJ, and C. RAY CHANDLER, Dept. Biol., Georgia Southern Univ., Statesboro, GA.

11:45 364 The adaptive surface for western North American Red Crossbills:  divergent selection has driven their radiation. CRAIG W. BENKMAN, Dept. Biol., New Mexico State Univ., Las Cruces, NM.

12:00 365 Potential impacts of climate change on forest breeding birds in the southern  Appalachians -- If you can't stand the heat, get out of the kitchen.  DANIEL H. KIM, DAVID A. BUEHLER, Dept. For., Wildl. & Fish., Univ Tennessee, Knoxville, TN, ERIC T. LINDER, Dept. Biol., Mississippi State Univ., Starkville MS, and KATHLEEN FRANZREB, USDA For. Serv., Southern Appalachians Coop.  Ecosys. Stud. Unit, Knoxville, TN.

12:15 366 *Patterns of ecological and morphological diversity in temperate and tropical woodpeckers.  ALISON R. STYRING, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

Session 10H (Vieux Carré - AB).  Conservation.  Gregory S. Butcher, chair.

10:30 367 Contamination levels in piscivorous birds in the South San Francisco Bay.  CHERYL M. STRONG, San Francisco Bay Bird Observ., Alviso, CA, and TERRY ADELSBACH, U.S. Fish & Wildl. Serv. Environ. Contaminants Div., Sacramento, CA.

10:45 368 Bird conservation planning for the central mixed-grass physiographic area of Kansas and Nebraska. GREGORY S. BUTCHER, Partners in Flight, Brookfield, WI.

11:00 369 Landscape context outweighs local habitat variables in determining predation risk.  KATHLEEN K. FLEMING and WILLIAM F. PORTER, SUNY Coll. Environ. Sci. & For., Syracuse, NY.

11:15 370 The effects of purple loosestrife (Lythrum salicaria) on wetland birds in northeastern Illinois.  J. DYLAN MADDOX, Dept. Nat. Res. & Environ. Sci., Univ. Illinois, Urbana, IL; and ROBERT N. WIEDENMANN, Illinois Nat. Hist. Surv., Champaign, IL.

11:30 371 Population trends in colonial waterbirds in coastal Louisiana, 1993 - 1999.  PAUL L. LEBERG, Dept. Biol., Univ. Louisiana, Lafayette, LA; WILLIAM VERMILLION, US Fish & Wildl. Serv., Lafayette, LA; MIKE CARLOSS, USDA-NRCS, Lafayette, LA; GREG LINSCOMBE, Louisiana Dept. Wildl. & Fish., New Iberia, LA; and BILLY LEONARD, US For. Serv., Albuquerque, NM.

11:45 372 Are Cooper's Hawks reducing American Kestrel populations by predation? DANIEL ARDIA, Lab. Ornithol., Cornell Univ., Ithaca, NY; DAVID M. BIRD, Avian Sci. & Conserv. Centre, McGill Univ., Ste. Anne de Bellevue, PQ; JOHN SMALLWOOD, Montclair State Univ., Upper Montclair, NJ; JOANNE MASON, Univ. Massachusetts Cranberry Sta.,  East Wareham, MA; MICHAEL MAURER, Marion, MA; and KEITH BILDSTEIN, Hawk Mountain Sanctuary, Kempton, PA.

12:00 373 Predation of real and artificial grassland bird nests in the northern mixed-grass prairie:  does patch size influence nest success?  STEPHEN K. DAVIS, Saskatchewan Wetland Conservation Corp. Regina, SK.

12:15 374 Effects of burn interval on Henslow's Sparrows wintering in southeastern Louisiana pine savannas.  CATHERINE L. BECHTOLDT and PHILIP C. STOUFFER, Dept. Biol. Sci., Southeastern Louisiana Univ., Hammond, LA.

12:30  Lunch Break; for options see FOOD section, p. 6 above

Symposium P (Vieux Carré - B).  The ecology of cavity nesters:  keystone processes.  J. Bednarz, P. Radley & D. Ripper, organizers.

14:00 S123 Cavity nester communities in British Columbia:  nest webs, keystone excavators and resource bottlenecks. KATHY MARTIN, For. Sci., Univ. British Columbia, Vancouver.

14:15 S124 Complexities of snag decay in ponderosa pine:  how foraging woodpeckers may influence decay patterns and subsequent nest-site quality.  KERRY L. FARRIS, Wildlife Conservation Society, Tucson, AZ and STEVE ZACK, Wildlife Conservation Society, Portland, OR.

14:30 S125 Species interactions among tree hole users:  do some species exhibit disproportionately large effects on the community?  ERIC L. WALTERS and FRANCES C. JAMES, Florida State Univ., Tallahassee, FL.

14:45 S126 Woodpecker nest sites:  the role of fungi and microclimate.  JEROME A. JACKSON, Whitaker Center for Sci., Math. & Tech. Edu., Florida Gulf Coast Univ., Ft. Myers, FL.

15:15 S127 Persistence of nest cavities in burned forests.  VICTORIA A. SAAB, JONATHAN G. DUDLEY, Rocky Mountain Res. Sta., Boise, ID; and WILLIAM L. THOMPSON, Dept. Biol. Sci., Univ. Arkansas, Fayetteville, AR.

15:30  Refreshment Break, Hotel Inter-Continental, Third Floor

16:00 S128 Who's in holes, what's the supply, and how five small owls fit.  FREDERICK R. GEHLBACH, Dept. Biol., Baylor Univ., Waco, TX.

16:15 S129 Fauna from Ferruginous Pygmy-Owl and Eastern Screech-Owl nest cavities.  GLENN A. PROUDFOOT, PETE D. TEEL, R. DOUGLAS SLACK and RODNEY L. HONEYCUTT, Texas A&M Univ., College Station, TX.

16:30 S130 Selective logging and time lag in a tropical rainforest:  delayed impacts on Southeast Asian woodpeckers.  ALISON R. STYRING, Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

16:45 S131 *Cavity-nesting communities and requirements of the keystone cavity-excavator, Hairy Woodpecker, in the managed forests of the northwest Olympic Peninsula.  DANA RIPPER, JAMES C. BEDNARZ, DAVID JULIANO, MARTIN J. HUSS, Dept. Biol. Sci., Arkansas State Univ., Jonesboro, AR, and DANIEL E. VARLAND, Rayonier Inc., Hoquiam, WA.

17:00 S132 Community interactions associated with Red-cockaded Woodpecker cavities.  JOHN J. KAPPES, Jr. Dept. Wildl. Ecol. & Conserv., Univ. Florida, Gainesville, FL.

17:15 S133 Keystone interactions of Red-cockaded Woodpeckers in southern pine ecosystems.  RICHARD N. CONNER, Southern Res. Sta., Nacogdoches, TX.

Symposium Q (Vieux Carré - A).  Natural climate variability and birds:  recent advances in our understanding of worldwide climate systems, and an examination of their effect on avian population dynamics.  E. A. Schreiber & D. Gemmill, organizers.

14:00 S134 Major modes of intraseasonal to interannual climate variability:  importance for field ornithology. VERNON E. KOUSKY, Climate Prediction Center, Camp Springs, MD.

14:15 S135 Marine birds of the southern California current ecosystem:  community, population, demographic, and foraging responses to climatic variability.  WILLIAM. J. SYDEMAN, K. DAVID. HYRENBACH, KYRA L. MILLS, CHRISTINE A. ABRAHAM, PETE WARZYBOK, Marine Sci. Div., Point Reyes Bird Observ., Stinson Beach, CA; and RICHARD R. VEIT, Coll. Staten Island, Staten Island, NY.

14:30 S136 Influences of climate oscillations on avian populations and reproductive success in forests of the Pacific Northwest.  M. PHILIP NOTT, DAVID F. DeSANTE, RODNEY B. SIEGEL and PETER PYLE, The Institute for Bird Populations, Point Reyes Bird Observ., Stinson Beach, CA

14:45 S137 Trying to monitor a moving target - climate variability and interannual shifts in bird distributions.  JEFF PRICE, American Bird Conservancy, Boulder, CO.

15:00 S138 Seabird responses to oceanographic variability in the Northern and Southern Hemisphere.  WILLIAM A. MONTEVECCHI, Memorial Univ. Newfoundland, St. John's, NF; and RICHARD R. VEIT, Staten Island Coll., City Univ. New York, NY.

15:15 S139 Climate resources for ornithologists.  DAPHNE GEMMILL, Climate Prediction Center, Natl.  Oceanic and Atmospheric Admin., Camp Springs, MD.

15:30 S140 Climate variability and bird adaptability:  future directions for bird research in relation to climate factors.  E. A. SCHREIBER, Natl. Mus. Nat. Hist., Washington, DC.

Session 11C (Cabildo).  Systematics.  J. D. Rising, chair.

14:00 375 Phylogeography of two bird species in the Philippines.  ANDREW W. JONES, Bell Mus., Univ. Minnesota, MN; ROBERT S. KENNEDY, Maria Mitchell Assoc., Nantucket, MA; and ROBERT M. ZINK, Bell Mus.

14:15 376 Phylogeny and biogeography of tanagers in the genus Tangara (Thraupidae).  KEVIN J. BURNS, Dept. Biol., San Diego State Univ., San Diego, CA; and KAZUYA NAOKI, Dept. Biol. Sci. and Mus. Nat. Sci., Louisiana State Univ., Baton Rouge, LA.

14:30 377 Historical and null hypotheses of bird speciation in the Amazon:  new ideas revive an old-fashioned view.  MARIO COHN-HAFT, Colecoes Zoologicas-INPA, Manaus, AM, Brazil, and G. BRUCE WILLIAMSON, Dept. Plant Sci., Louisiana State. Univ., Baton Rouge, LA.

14:45 378 Phylogeny of the Accipitridae.  CAROLE S. GRIFFITHS, Biol. Dept., Long Island Univ., Brooklyn, NY and Ornith. Dept., Am. Mus. Nat. Hist., New York, NY, JEFF G. GROTH and GEORGE BARROWCLOUGH, Ornith Dept, Am. Mus Nat Hist, New York.

15:00 379 Phylogeography of the Ruffed Grouse in North America.  PATRICIA H. BRITO, GEORGE F. BARROWCLOUGH, Am. Mus. Nat. Hist., New York, NY, and R. J. GUTI ÉRREZ, Dept. Fish. & Wildl., Univ. Minnesota, St. Paul, MN.

15:15 380 Geographic variation in plumage pattern and color in Savannah Sparrows.  J. D. RISING and D. A. JACKSON, Dept Zool., Univ. Toronto, Toronto, ON.

Session 11D (Pan-Am Auditorium).  Breeding biology.  Nancy J. Clum, chair.

14:00 381 Breeding biology of Rose-ringed Parakeets in the UK.  CHRIS BUTLER, Dept. Zool., Univ. Oxford, Oxford, UK.

14:15 382 Effects of early growth on breeding probability of Black Brant.  JAMES S. SEDINGER, MARK P. HERZOG, Environ. & Res. Sci., Univ. Nevada Reno, Reno, NV, and DAVID H. WARD, U.S. Geol. Surv., Anchorage, AK.

14:30 383 Between year variation in the timing of breeding by Florida Scrub-Jays:  similarities and differences between populations.  REED BOWMAN, GLEN E. WOOLFENDEN, Archbold Biol. Sta., Lake Placid, FL; and JOHN W. FITZPATRICK, Cornell Lab. Ornithol., Ithaca, NY.

14:45 384 Sharp-tailed Sparrow hybridization in New England.  W. GREGORY SHRIVER, State Univ. New York, THOMAS P. HODGMAN, Maine Dept. Inland Fish. & Wildl., PETER D. VICKERY, Center Ecol. Res., and J. P. GIBBS, State Univ. New York.

15:00 385 Space use, migratory connectivity, and population segregation among Willets breeding in the Western Great Basin.  SUSAN M. HAIG, USGS For. & Rangeland Ecosys. Sci. Center, Corvallis, OR; LEWIS W. ORING, Univ. Nevada, Reno, NV; PETER M. SANZENBACHER and ORIANE W. TAFT, USGS For & Rangeland Ecosys. Sci. Center, Corvallis, OR.

15:15 386 Survival of juvenile and subadult California Condors released in Arizona.  CHRISTOPHER P. WOODS and WILLIAM R. HEINRICH, Peregrine Fund, Boise, ID.

Session 11E (Pontalba).  Conservation.  Felipe Chavez-Ramirez, chair.

14:00 387 Evaluating abundance of Cuban Sandhill Cranes through habitat use patterns and home range on the Isle of Youth, Cuba.  FELIPE CHAVEZ-RAMIREZ, Internatl. Crane Found. and Platte River Whooping Crane Trust, Wood River, NE, and XIOMARA GALVEZ AGUILERA, Empresa Nacional para la Proteccion de Flora y Fauna, Ministerio  de Agricultura, Havana, Cuba.

14:15 388 Habitat use in Western Bluebirds in California's oak savanna.  CATHERINE GRAHAM, Mus. Vert. Zool., Univ. California, Berkeley, CA, and JANIS DICKINSON, Hastings Nat. Hist. Res., Carmel Valley, CA.

14:30 389 Influences of supplementally fed elk on aspen and associated landbirds in and near Jackson Hole, Wyoming.  ERIC M. ANDERSON and STANLEY H. ANDERSON, Dept. Zool. & Phys., Univ. Wyoming, Laramie, WY.

14:45 390 Habitat recolonization by permanent-resident birds in a fragmented landscape:  a manipulative study.  JEREMIAH D. GROOM and THOMAS C. GRUBB, Jr., Dept. EEO Biol., Ohio State Univ., Columbus OH.

15:00 391 Effects of forest degradation on bird communities in the Cockpit Country, a limestone karst region of Jamaica.  HERLITZ A. DAVIS and PETER VOGEL, Dept. Life Sci., Univ. West Indies, Kingston, Jamaica.

15:15 392 Patterns of species richness in a naturally patchy juniper woodland.  DAVID C. PAVLACKY Jr., Dept. Fish. & Wildl., Univ. Minnesota, St. Paul, MN, and STANLEY  ANDERSON, Wyoming Coop. Fish & Wildl. Res. Unit, Univ. Wyoming, Laramie, WY.

Session 11J (Poydras).  Ecology.  Matthias Leu, chair.

14:00 393 The response of song birds to varying levels and patterns of green-tree retention:  an experiment.  MATTHIAS LEU and DAVID A. MANUWAL, Coll. For. Res., Univ. Washington, Seattle, WA.

14:15 394 Response of wintering grassland birds to vegetation structure and composition.  JANET M. RUTH, USGS, Albuquerque, NM, and CALEB E. GORDON, Lake Forest Coll., Lake Forest, IL.

14:30 395 Breeding and fall bird use of burned and unburned habitats in southwest Idaho.  GREGORY S. KALTENECKER, Idaho Bird Observatory, Dept. Biol., Boise State Univ., Boise, ID; ANN M. ROCKLAGE, Idaho Power Co., Boise, ID; and JAY D. CARLISLE, Dept. Biol., Univ. South Dakota, Vermillion, SD.

14:45 396 Rates of predation on artificial and real nests along an urban to rural land use gradient.  ROBERT REITSMA and PETER P. MARRA, Smithsonian Environ. Res. Center, Edgewater, MD.

15:00 397 Habitat dependent burn response in grassland birds.  JAMES R. HERKERT, The Nature Conservancy, Peoria, IL.

15:15 398 Reproductive failure in the coastal sage scrub avifauna during an extreme climatic event.  DOUGLAS T. BOLGER and MICHAEL A. PATTEN, Environ. Stud. Prog., Dartmouth Coll., Hanover, NH.

15:30  Refreshment Break, Hotel Inter-Continental, Third Floor

Session 12C (Cabildo).  Conservation.  John Rotenberry, chair.

16:00 399 An investigation of bird species of concern in three climax upland communities in northern Mississippi:  implications for management of second-growth upland forests.  DOUGLAS S. HOHMAN, Dept. Biol., Univ. Mississippi, University, MS, and STEVEN M. AQUILANI, Dept. Biol., Delaware Co. Coll., Media, PA.

16:15 400 Black death on the prairie:  plague, prairie dogs, and Burrowing Owls.  MARCO RESTANI, Dept. Biol. Sci., St. Cloud State Univ., St. Cloud, MN.

16:30 401 Influence of recreational land use on bird community composition.  BILLY P. LEONARD, USDA For. Serv., Rocky Mountain Res. Sta., Albuquerque, NM; PAUL L. LEBERG, Dept. Biol., Univ. Louisiana-Lafayette, Lafayette, LA; and CLINTON W. JESKE, USGS Natl. Wetlands Res. Center, Lafayette, LA.

16:45 402 Direct vs. indirect effects of urban edge on bird distributions in coastal sage-scrub vegetation.  JOHN ROTENBERRY, WILLIAM KRISTAN III, MARY PRICE, Dept. Biol., Univ. California, Riverside, CA; and ANTONY LYNAM, Wildlife Conserv. Soc., Bangkok, Thailand.

17:00 403 Land use management and songbird diversity in the Adirondack Park, NY.  MICHALE J. GLENNON and WILLIAM F. PORTER, Dept. Env. For. Biol., State Univ. NY, Coll. Env. Sci. For., Syracuse, NY.

Session 12D (Pan-Am Auditorium).  Behavior.  David B. McDonald, chair

16:00 404 *Landscape and local effects on snags and cavity-nesting birds in urban areas.  TINA ROHILA and JOHN MARZLUFF, Coll. For. Res., Univ. Washington, Seattle WA.

16:15 405 Structural and phaeomelanin coloration indicate parental effort and reproductive success in male Eastern Bluebirds.  LYNN SIEFFERMAN and GEOFFREY E. HILL, Dep. Biol. Sci., Auburn Univ., Auburn, AL.

16:30 406 Genes and GIS:  mating system, phylogeography and habitat use of rosy-finches.  DAVID B. McDONALD, Dept. Zool., Univ. Wyoming, Laramie, WY.

16:45 407 Reproductive success of three sympatrically breeding loon species in northern Alaska.  SUSAN L. EARNST, USGS For. & Range. Ecosys. Sci. Center, Boise, ID.

17:00 408 Breeding biology and nest site selection of Red-tailed Hawks in southern Arizona.  ROYDEN J. HOBBS, Dept. Wildl. & Fish. Sci., Univ. Arizona, Tucson, AZ; STEPHEN DeSTEFANO, Massachusetts Coop. Fish & Wildl. Res. Unit, Univ. Massachusetts, Amherst, MA, and WILLIAM L. HALVORSON, USGS Sonoran Desert Field Sta., Univ. Arizona, Tucson, AZ.

Session 12E (Pontalba).  Foraging and diet.  Margaret Rubega, chair.

16:00 409 Why do parrots eat dirt?  A study of avian geophagy in Peru.  DONALD J. BRIGHTSMITH, Dept. Biol., Duke Univ., Durham, NC, and ROMINA ARAMBURÚ MUÑOZ-NAJAR, Universidad Nacional Agraria La Molina, Lima, Peru.

16:15 410 Diet of breeding Northern Goshawks in east-central Arizona.  ANDI S. ROGERS, MICHAEL F. INGRALDI, Arizona Game & Fish Dept., Phoenix, AZ; and STEPHEN DeSTEFANO, USGS/MA Coop  Fish & Wildl. Res. Unit, Univ. Massachusetts, Amherst, MA.

16:30 411 Variation and stereotypy in avian feeding:  motor patterns and feeding mechanics in the Ruddy Turnstone.  MARGARET RUBEGA, CARINA GJERDRUM and GREGOR YANEGA, Dept. Ecol. Evol. Biol., Univ. Connecticut, Storrs, CT.

16:45 412 Why do Humboldt Penguins feed on seashells?  CARLOS ZAVALAGA, Dept. Biol. Sci. Univ. North Carolina at Wilmington, NC; and ROSANA PAREDES, Dept. Biol., Memorial Univ. Newfoundland, St. John's, NF.

17:00 413 Response by migrating raptors to RoboLure, a mechanical lure for attracting raptors.  BUZZ HULL, RICHARD HORN, TOBIAS ROHMER, CLAIRE GALLAGHER and MARK McCAUSTLAND, Golden Gate Raptor Observ., San Francisco, CA

Session 12J (Poydras).  Breeding biology.  Patty McGill, chair.

16:00 414 Hormonal correlates of reproduction and failure to reproduce in Guam Kingfishers.  GENE S. FOWLER, Dept. Biol., Pomona Coll., Claremont, CA; and PATTY McGILL, Chicago Zool. Soc., Brookfield Zoo, Brookfield, IL.

16:15 415 Species richness and nesting success of Neotropical migrants in natural river corridors and anthropogenic woodlands in southeastern South Dakota.  DALE GENTRY, Dept. Biol., South Dakota School Mines & Tech., Rapid City, SD, and DAVID SWANSON, Dept. Biol., Univ. South Dakota, Vermillion, SD.

16:30 416 Variation in nest attendance and predation rates on cup nesting passerines during the nesting cycle.  T. LUKE GEORGE, Dept. Wildl., Humboldt State Univ., Arcata, CA, STEVE ZACK, Wildl. Conserv. Soc., Portland, OR, JINELLE HUTCHINS, Dept. Wildl., Humboldt State Univ., and JOE LIEBEZEIT, Wildl. Conserv. Soc., Arcata, CA.

16:45 417 Communal laying in the Great Tinamou, Tinamus major.  PATRICIA L. R. BRENNAN, Dept. Neurobiol. & Behav., Cornell Univ., Ithaca, NY.

17:00 418 Effects of landscape composition on breeding bird community structure.  COLIN E. STUDDS, Dept. Nat. Res. Sci., Univ. Rhode Island, Kingston, RI.

17:00 - 18:00 Cocktain Hour with cash bar ( Le Salon)

18:00 - 23:00  Final Banquet with Cajun dance band, “Les Freres Michot” (Grand Ballroom =LaSalle ABC)

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