THE CONDOR
Vol. 104, Number 1
February 2002 C.E.
TABLE OF CONTENTS

FEATURE ARTICLES

Isotopic Investigations of the North Water Polynya: Contrasting Trophic Relationships between the Eastern and Western Sectors

1

KEITH A. HOBSON, GRANT GILCHRIST AND KNUD FALK

Provisioning and Growth Rates of Shy Albatrosses at Albatross Island, Tasmania

12

APRIL HEDD, ROSEMARY GALES AND NIGEL BROTHERS

Structural Plumage Coloration, Male Body Size, and Condition in the Blue-black Grassquit

30

STÉPHANIE M. DOUCET

Migration and Ranging of Peregrine Falcons Wintering on the Gulf of Mexico Coast, Tamaulipas, Mexico

39

MICHAEL J. MCGRADY, THOMAS L. MAECHTLE, JUAN J. VARGAS, WILLIAM S. SEEGAR AND M. CATALINA PORRAS PEÑA

Age-Related Differences in Body Mass and Rates of Mass Gain of Passerines during Autumn Migratory Stopover

49

JASON JONES, CHARLES M. FRANCIS, MAYA DREW, SANDRA FULLER AND MICHELLE W. S. NG

Consistency of Mist Netting and Point Counts in Assessing Landbird Species Richness and Relative Abundance during Migration

59

YONG WANG AND DEBORAH M. FINCH

Bill Morphology of South American Flamingos

73

VIRGINIA MASCITTI AND FERNANDO OSVALDO KRAVETZ

Mitochondrial DNA Suggests High Gene Flow in Ancient Murrelets

84

REBECCA L. PEARCE, JESSE J. WOOD, YURI ARTUKHIN, TIMOTHY P. BIRT, MARTIN DAMUS AND VICKI L. FRIESEN

Demographic Variables are Poor Indicators of Wood Thrush Productivity

92

TODD J. UNDERWOOD AND ROLAND R. ROTH

Nest Site Selection and Nest Success in a Song Sparrow Population: The Significance of Spatial Variation

103

MARY K. CHASE

Does Intercolony Competition for Food Affect Colony Choice in Cliff Swallows?

117

CHARLES R. BROWN AND MARY BOMBERGER BROWN

Corticosterone Responses in Wild Birds: The Importance of Rapid Initial Sampling

129

L. MICHAEL ROMERO AND ROBIN C. ROMERO

Does Seed Packaging Influence Fruit Consumption and Seed Passage in an Avian Frugivore?

136

MARGARET C. STANLEY AND ALAN LILL

Song Sharing by Yellow Warblers Differs between Two Modes of Singing: Implications for Song Function

146

MARTIN D. BEEBEE



SHORT COMMUNICATIONS

Are Body Condition and Reproductive Effort of Laying Greater Snow Geese Affected by the Spring Hunt?

156

JULIEN MAINGUY, JOËL BÊTY, GILLES GAUTHIER AND JEAN-FRANÇOIS GIROUX

Hematological Parameters and Stress Index in Rufous-collared Sparrows Dwelling in Urban Environments

162

GRICELDA RUIZ, MARIO ROSENMANN, FRANCISCO FERNANDO NOVOA AND PABLO SABAT

Holarctic Phylogeography and Species Limits of Three-toed Woodpeckers

167

ROBERT M. ZINK, SIEVERT ROHWER, SERGEI DROVETSKI, RACHELLE C. BLACKWELL-RAGO AND SHANNON L. FARRELL

A New Species of Late Pleistocene Lapwing from Rancho La Brea, California

170

KENNETH E. CAMPBELL JR.

Experimental Assessment of the Influence of Gull-billed Terns on Nest Site Choice of Black Skimmers

174

SANDRA M. PIUS AND PAUL L. LEBERG

Sex Differences in Nest Visitation by Chick-Rearing Marbled Murrelets

178

RUSSELL W. BRADLEY, LAURA A. MCFARLANE TRANQUILLA, BRETT A. VANDERKIST AND FRED COOKE

Feeding of House Wren Nestlings Afflicted by Hematophagous Ectoparasites: A Test of the Parental Compensation Hypothesis

183

BRIAN L. MORRISON AND L. SCOTT JOHNSON

Breeding System of the Cape Rockjumper, a South African Fynbos Endemic

188

RICHARD T. HOLMES, BERNHARD D. FRAUENKNECHT AND MORNÉ A. DUPLESSIS

Low Extra-Pair Paternity in White tailed Ptarmigan

192

DAVID P. BENSON

No Extra-Pair Fertilization in Flammulated Owls despite Aggregated Nesting

197

DAVID P. ARSENAULT, PETER B. STACEY AND GUY A. HOELZER

Serial Polyandry and Alloparenting in Long-eared Owls

202

JEFFREY S. MARKS, JANIS L. DICKINSON AND JOSEPH HAYDOCK

Observations of Fecal Sac Disposal by Eastern Bluebirds

205

JASON D. LANG, CARRIE A. STRAIGHT AND PATRICIA ADAIR GOWATY



COMMENTARY

Water Levels Affect Nest Success of the Snail Kite in Florida: AIC and the Omission of Relevant Candidate Models

208

STEVEN R. BEISSINGER AND NOEL F. R. SNYDER

Snail Kite Nest Success and Water Levels: A Reply to Beissinger and Snyder

216

VICTORIA J. DREITZ, ROBERT E. BENNETTS, BRIAN TOLAND, WILEY M. KITCHENS AND MICHAEL W. COLLOPY



BOOK REVIEWS

The California Condor: A Saga of Natural History and Conservation, by Noel Snyder and Helen Snyder

222

SANFORD R. WILBUR

Prairie Birds: Fragile Splendor in the Great Plains, by Paul A. Johnsgard

224

ABBY N. POWELL

Birds of the Southwest, by John H. Rappole

225

TROY E. CORMAN



INFORMATION FOR CONTRIBUTORS

227