ERRATUM The Condor Volume 105 Contents printed in the back of the November issue (Volume 105, #4) included erroneous listings for 105(1) due to a printer’s error. Please put this replacement Contents in Condor 105, issue #4. Allen Press apologizes for the error. THE CONDOR JOURNAL OF THE COOPER ORNITHOLOGICAL SOCIETY VOLUME 105 ea Davip S. DoBKIN, Editor BARBARA Kus, Book Review Editor HuGuH D. W. PoweLL_, Managing Editor STEVE C. Epwarps, Editorial Assistant 2003 CONTENTS, VOLUME 105, 2003 NUMBER | (February) FEATURES Low Genetic Variability in the Geographically Widespread Andean Condor SHER L. HENDRICKSON, ROBERT BLEIWEISS, JUAN CARLOS MATHEUuS, LILLY SILVA DE MATHEUS, NORBERTO LUIS JACOME AND EDUARDO PAVEZ oy Seasonal, Age, and Sex Differences in Weight, Fat Reserves, and Plasma Corticosterone in Western Sandpipers KATHLEEN M. O’REILLY AND JOHN C. WINGFIELD See ren ens Boreal Forest Songbird Communities of the Liard Valley, Northwest Territories, Canada CRAIG S. MACHTANS AND PAUL B. LATOUR Are Barred Owls Displacing Spotted Owls? ELIZABETH G. KELLY, ERIC D. FORSMAN AND ROBERT G. ANTHONY sah Annual Survival and Recruitment in a Ruby-throated Hummingbird Population, Excluding the Effect of Transient Individuals BILL HILTON JR. AND MARK W. MILLER Aerie aha rents daha ee ease nee tire tate Breeding Success of a Specialist Brood Parasite, the Screaming Cowbird, Parasitizing an Alternative Host MyYRIAM E. ME RMOZ AND GUSTAVO J. FERNANDEZ Prior an Success Affects Return Rates of Territorial Male Cheese PAUL A. PORNELUZI Red-necked Grebes Become Siiisiiedté When Prime Nesting Substrate Is Available GARY L. NUECHTERLEIN, DEBORAH BUITRON, JOEL L. SACHS AND COLIN R. HUGHES ShelS EB ocea nd tn hate erten Coleg peu rela REMC2 3. ot aed ban ene, omt yne Spatial and Temporal Variation of Diet within a Presumed \ateapaaniadion of Adélie Penguins Davib G. AINLEY, GRANT BALLARD, KERRY J. BARTON, BRIAN J. KARL, GREG H. RAvU, CHRISTINE A. RIBIC AND PETER R. WILSON a) en ene Feeding Behavior of Cooper’s Hawks at Urban and Rural Nests in Southeastern Arizona WENDy A. ESTES AND R. WILLIAM MANNAN Winter Shorebird Communities and Tidal Flat Characteristics at Humboldt Bay, California ioe DANUFSKY AND MARK A. COLWELL SHORT COMMUNICATIONS Giving-up Densities and Habitat Preferences of European Starlings and American Robins JOSEPH O. OYUGI AND JOEL S. BROWN The Relative Importance of Arthropods and Fruits in Foraging Behavi ior of Omnivorous Tanagers ( rn The Comparison of Three Methods KAZUYA NAOKI Comparative Analysis of the Rattle Calls in Corvus and Nucifraga: The IE ffect of Body Size, Bill Size, and Phylogeny PAOLA LAIOLO AND ANTONIO ROLANDO ee a oe eee Pr Can Surveillance Radar Be Used to Monitor the eunine Distribution of Colonially Breeding Alcids? KRISTJAN LILLIENDAHL, JON SOLMUNDSSON, GUDMUNDUR A. GUDMUNDSSON AND LORNA TAYLOR New Records of Storks (C vcialbiensy from nenaies Asphalt Panels in Cuba WILLIAM SUAREZ AND STorRS L. OLSON Male Chestnut-collared Longspurs Are Essential for Nestling Survival: A Removal Study SHARON E. LYNN AND JOHN C. WINGFIELD Orientation and Microclimate of Horned Lark Nests: The Importance of Shade C. ALEX HARTMAN AND LEwis W. ORING BOOK REVIEWS Avian Incubation: Behaviour, Environment, and Evolution, edited by D. C. Deeming KEITH W. SOCKMAN Extinct Birds, Second Edition, by Ea Fuller ROBERT C. FLEISCHER Briefly Noted: Asian Buffet—All You Can Read WILLIAM I. BOARMAN NEWS AND NOTES AWARD ANNOUNCEMENTS INFORMATION FOR CONTRIBUTORS NUMBER 2 (May) FEATURE ARTICLES Winter Bird Communities in Four Habitats along an Elevational Gradient on Hispaniola STEVEN C. LATTA, CHRISTOPHER C. RIMMER AND KENT P. MCFARLAND Survival of Captive-Reared Hispaniolan Parrots Released in Parque Nacional del Este, Dominican Republic JAIME A. COLLAZO, THOMAS H. WHITE JR., FRANCISCO J. VILELLA AND SIMON A. GUERRERO Differential Use of Thermal Convection by Soaring Birds over Central Israel JUDY SHAMOUN-BARANES, YOSSI LESHEM, YORAM YOM-TOV AND OLIVIER LIECHTI Migration Routes of Steppe Eagles between Asia and Africa: A Study by Means of Satellite Telemetry BERND-U. MEYBURG, PATRICK PAILLAT AND CHRISTIANE MEYBURG eedeerd Mitochondrial DNA Phylogeography of the Bay Wren (Troglodytidae: Thryotho- rus nigricapillus) Complex MARIBEL A. GONZALEZ, JESSICA R. EBERHARD, IRBY J. LOVETTE, STORRS L. OLSON AND ELDREDGE BERMINGHAM Skeletal Characters and the Genera of Ble ckbirds (Icteridae) J. DAN WEBSTER Dietary and Sexual Correlates of Carotenoid Pigment Expression in Dove Plumage BETTINA MAHLER, LIDIA S. ARAUJO AND PABLO L. TUBARO Senet eels Time Budgets and Body Temperatures of American Golden-Plover Chicks in Relation to Ambient Temperature KAREN L. KRINGSVELD, JEROEN W. H. RENEERKENS, GABRIEL D. MCNETT AND ROBERT E. RICKLEFS Development of Foraging Skills and the Transition to Independence in Juvenile Savannah Sparrows NATHANIEL T. WHEELWRIGHT AND JENNIFER J. TEMPLETON I a ee gee Riparian Bird Community Structure in Portland, Oregon: Habitat, Urbanization, and Spatial Scale Patterns Lori A. HENNINGS AND W. DANIEL EDGI SUR 0 ASS tj A rach Oth oh Dt Avian Communities of Created and Natural Wetlands: Bottomland Forests in Virginia EMILIE C. SNELL-ROOD AND DANIEL A. CRISTOI Fils wee cs atom fone Testing the Risk-Disturbance Hypothesis in a Fragmented Lc ilaieni Nonlinear Responses of House Sparrows to Humans ESTEBAN FERNANDEZ-JURICIC, ANGEL SALLENT, RUBEN SANZ AND INAKI RODRIGUEZ-PRIETO Peregrine Falcon Eggs: Egg Size, Hatchling Sex, and Clutch Sex Ratios WILLIAM BURNHAM, CALVIN SANDFORT AND JAMES R. BELTHOFF ao Survival of Female Lesser Scaup: Effects of Body Size, Age, and Reproductive Effort JAY J. ROTELLA, ROBERT G. CLARK AND ALAN D. AFTON Using Video to Monitor Predation at Black-capped Vireo Nests MIKE M. STAKE AND DAVID A. CIMPRICH SHORT COMMUNICATIONS Antibiotic-Resistant Gram-Negative Bacteria in Birds from the Brazilian Atlantic Forest ANDREA M. A. NASCIMENTO, LUCIANA CURSINO, HIGGOR GONCALVES- DorRNELAS, ANDREA REIS, EDMAR CHARTONE-SOUZA AND MIGUEL A. MARINI Wattle Size Is Correlated with Male Territorial Rank in Juvenile Ring-necked Pheasants ANNA PAPESCHI, JOHN P. CARROLL AND FRANCESCO DEssi-FULGHERI Estimating Population Trends with a Linear Model JONATHAN BART, BRIAN COLLINS AND R. I. G. MORRISON Nest-Site Selection, Interspecific Associations, and Nest Success of _ Eiders DANA K. KELLETT, RAY T. ALISAUSKAS AND KATHERINE R. MEHI Sex Roles during Incubation in the Common Ringed Plover JOHAN WALLANDER Empty Nests Do Not Affect naiites Mate Choice or Maternal Investment in House Wrens NATALIE S. DUBOIS AND THOMAS GETTY Sica Felco: Cede © Gomes Rescue of the Mascarene Petrel, a Critically Endangered Seabird of Réunion island, Indian Ocean MATSTHIEU LE CORRE, THOMAS GHESTEMME, MARC SALAMOLARD AND FRANCOIS-XAVIER COUZI BOOK REVIEWS Biology of Marine Birds, edited by E.A. Schreiber and Joanna Burger WILLIAM J. SYDEMAN The Purple ee by Robin Dowsiay al Rob Sem BRIDGET J. M. STUTCHBURY Birds of the Baja California Peninsula: Status, Distribution, and Taxonomy, edit- ed by Richard A. Erickson and Steve N. G. Howell WILLIAM T. EVERETT Birds of the Texas Hill Country, i Mark VW . ‘Redieiont ROBIN W. DOUGHTY Number 3 (August) FEATURE ARTICLES Population Trends of Migratory Raptors in Western North America, 1977-2001 STEPHEN W. HOFFMAN AND JEFF P. SMITH High Basal Metabolic Rates of Shorebirds While in the Arctic: A C en View AKE LINDSTROM AND MARCEL KLAASSEN Pe ne, EE Pe ee oe Variation in Morphology and Mating System among Island Populations of Galapagos Hawks JENNIFER L. BOLLMER, TANIA SANCHEZ, MICHELLE DONAGHY CANNON, DIDIER SANCHEZ, BRIAN CANNON, JAMES C. BEDNARZ, TJITTE DE VRIES, M. SUSANA STRUVE AND PATRICIA G. PARKER eem ht ue eh Demography and Population Trends of the Atlantic Yellow-nosed Albatross RICHARD CUTHBERT, PETER G. RYAN, JOHN COOPER AND GEOFF HILTON Bacteria in the Repreductive Tracts of Red-winged Blackbirds GINA HupTON, SUSANA PORTOCARRERO, MELISSA NEWMAN AND DAVID F. WESTNEAT The Influence of Body Coniitien on Leitl inane hanes of ‘Senile _— Sanderlings in Coastal North Carolina STEPHEN J. DINSMORE AND JAIME A. COLLAZO Hunting Behavior and Diet of Cooper’s Hawks: An U iti View ofF the Small- Bird-in-Winter Paradigm TimotuHy C. RotH II AND STEVEN L. LIMA The Seasonal Distribution and Abundance of Wiciinatsiads in Oak Woodland and Riparian Communities in Southeastern Arizona SUSAN M. WETHINGTON AND STEPHEN M. RUSSELL Age-related Differences in Foraging Efficiency, Molt, and Fat Desens of Gray Catbirds Prior to Autumn Migration COLLEEN DWYER HEISE AND FRANK R. MOORE Family Structure in the Siberian Jay as Revealed by Nilcadnstailttie Anita ses Bo-GOrAN LILLANDT, STAFFAN BENSCH AND TORBJORN VON SCHANTZ Variation in Foraging Behavior, Diet, and Time of Breeding of Florida Scrub-Jays in Suburban and Wildland Habitats ARTHUR L. FLEISCHER JR., REED BOWMAN AND GLEN E. WOOLFENDEN Gyrfalcon Diet in Central West Greenland during the Nesting Period TRAVIS L. BOOMS AND MARK R. FULLER Ben Scar, tanto Coexistence in a Multispecies Assemblage of Eagles in Central Asia Topp E. KATZNER, EVGENY A. BRAGIN, STEVEN T. KNICK AND ANDREW T. SMITH New Distributional Sadat of Birdsf f rom White- Sand Forests of the sade Peruvian Amazon, with Implications for Biogeography of Northern South America JOSE ALVAREZ ALONSO AND BRET M. WHITNEY SHORT COMMUNICATIONS Variation in Hydrogen Stable-Isotope Ratios between Adult and Nestling Cooper’s Hawks TIMOTHY D. MEEHAN, ROBERT N. ROSENFIELD, VIOREL N. ATUDOREI, JOHN BIELEFELDT, LAURA J. ROSENFIELD, ANDREW C. STEWART, WILLIAM E. STOUT AND MICHAEL A. BOZEK Prehistoric Exploitation of Birds on the Pacific Coast of CC haanes: Nitaieo DaviD W. STEADMAN, MARKUs P. TELLKAMP AND THOMAS A. WAKE Microsatellite DNA Evidence for Gene Flow in Neotropical Lek-Mating Long- tailed Manakins Davip B. MCDONALD Carotenoid Pigments in a Mutant Candia: initiations for the Genetic and Enzymatic Control Mechanisms of Carotenoid Metabolism in Birds KEVIN J. MCGRAW, GEOFFREY E. HILL AND ROBERT S. PARKER cous Female Mate Choice in Relation to Structural Plumage Coloration in Blue Grosbeaks BARBARA BALLENTINE AND GEOFFREY E. HILI Greater Food Availability Reduces Tarsus Asymmetry in Nestling Blue Tits FABRIZIO GRIECO Quality of Food Source Affects Pesan Visitation id —_— Rates of Male Broad-tailed Hummingbirds ALAINE F, CAMFIELD BOOK REVIEWS A Red Bird in a Brown Bag: The Function and Evolution of Colorful Plumage in the House Finch, by Geoffrey E. Hill PATRICK J. WEATHERHEAD Conserving Bird Biodiversity: Gomeid acionee and their Apulia, edited by Ken Norris and Deborah J. Pain TERRELL D. RICH Birds of Nebraska: Their Distribution and Temporal Occurrence, by Roger S. Sharpe, W. Ross Silcock, and Joel G. Jorgensen CHARLES R. BROWN Number 4 (November) ISSUES IN CONSERVATION Teetering on the Edge or Too Late? Conservation and Research Issues for the Avifauna of Sagebrush Habitats STEVEN T. Knick, DAvID S. DOBKIN, JOHN T. ROTENBERRY, MICHAEL A. SCHROEDER, W. MATTHEW VANDER HAEGEN AND CHARLES VAN RIPER III FEATURE ARTICLES The First Basic Problem: A Review of Molt and Plumage Homologies STEVE N. G. HOWELL, CHRIS CORBEN, PETER PYLE AND DANNY I. ROGERS The High-Elevation Population of Mountain Plovers in Colorado MICHAEL B. WUNDER, FRITZ L. KNOPF AND CHRIS A. PAGUE Do Melanin- or Carotenoid-Pigmented Plumage Ornaments Signal C waite sit Predict Pairing Success in the Kentucky Warbler? TIMOTHY H. PARKER, BROOK M. STANSBERRY, C. DUSTIN BECKER AND PHILIP S. GIPSON The Complex Song Duet of theP lain Wren NIGEL I. MANN, LORRAINE MARSHALL-BALL AND PETER J. B. SLATER Reproductive Seasonality of Seven Neotropical Passerine Species MARTIN WIKELSKI, MICHAELA HAU, W. DOUGLAS ROBINSON AND JOHN C. WINGFIELD Using Fecal Glucocorticoids for Stress Assessment in Mourning Doves BRIAN E. WASHBURN, JOSHUA J. MILLSPAUGH, JOHN H. SCHULZ, SUSAN B. JONES AND TONY MONG Energetics of Altricial Nestlings in Cold CMeanes: biniidhins from the iinet White-crowned Sparrow WESLEY W. WEATHERS, CHARISSE L. DAVIDSON AND MARTIN L. MORTON Frequency of Egg Rejection by Potential Hosts of the New Zealand Cuckoos JAMES V. BRISKIE ais A Comparative Study of Shiny Sod: ecsisitinin of — ieee Hosts, the Chalk-browed Mockingbird and the Rufous-bellied Thrush PAULA SACKMANN AND JUAN CARLOS REBOREDA Long-term Declines and Decadal Patterns in Population toads of Sesiaibinede in Western North America, 1979-1999 GRANT BALLARD, GEOFFREY R. GEUPEL, NADAV NUR AND THOMAS GARDALI Advantages of Clustered Nesting for Least Flycatchers in North-Central Minnesota ETHAN F. PERRY AND DaAviD E. ANDERSEN Identification of Source Population for Gecetiens oS sn Ginee: Genetic Assessment of a Recent Colonization KIM T. SCRIBNER, RICHARD A. MALECKI, BRUCE D. J. BATT, RAINY L. INMAN, Scot LIBANTS AND HAROLD H. PRINCE Seasonal Changes in Brood Sex Composition in deals s Gulls MERITXELL GENOV: ART, DANIEL ORO, XAVIER RUIZ, RICHARD GRIFFITHS, PAT MONAGHAN AND RUEDI G. NAGER Winter Distribution and Survival of a High- — ecsiting Peat of Canvasbacks KAMMIE L. KRUSE, JAMES R. LOVVORN, JOHN Y. TAKEKAWA AND JEFFREY MACKAY SHORT COMMUNICATIONS Effects of Radio-Transmitters on Fecal Glucocorticoid Levels in Captive Dickcissels KIMBERLY M. SUEDKAMP WELLS, BRIAN E. WASHBURN, JOSHUA J. MILLSPAUGH, MARK R. RYAN AND MICHAEL W. HUBBARD . Home Range and Residency Status of Northern Goshawks Breeding in Minnesota CLINT W. BoAL, DAviD E. ANDERSEN AND PATRICIA L. KENNEDY Effects of Paternity and Mate Availability on Mate Switching in House Wrens NICOLE E. PoIRIER, LINDA A WHITTINGHAM AND PETER O. DUNN Stasis in the Morph Ratio Cline in the Bananaquit on Grenada, West Indies ANDREW D. C. MACCOLL AND IAN R. STEVENSON Wing Shape in House Finches Differs Relative to Migratory Habit in Eastern and Western North America JEREMY R. EGBERT AND JAMES R. BELTHOFF Digestive Enzymes in Two Species of Marine Cinclodes (Passeriformes: Furnariidae) PABLO SABAT AND SANDRA P. GONZALEZ BOOK REVIEWS The Lost World of the Moa, by Trevor H. Worthy and Richard N. Holdaway MICHAEL R. DICKISON The Adélie Penguin: Bellwether of Climate Change, by David G. Ainley GERALD L. KOOYMAN North American Owls: Biology and Natural History Johnsgard JEFFREY S. MARKS Briefly Noted: Avian Masala WILLIAM I. BOARMAN NEWS AND NOTES ANNOUNCEMENT OF A NEW AWARD AWARD ANNOUNCEMENTS REVIEWERS FOR VOLUME 105 INDEX TO VOLUME 105 e | e m W i z e U t —;