THE CONDOR
Volume 109, Number 3
August 2007 C.E.
Table of Contents

SPECIAL SECTION: CHOICES AND CONSEQUENCES OF AVIAN HABITAT SELECTION

Choices and Consequences of Habitat Selection for Birds 485

WILLIAM B. KRISTAN III, MATTHEW D. JOHNSON, AND JOHN T. ROTENBERRY
Measuring Habitat Quality: A Review 489

MATTHEW D. JOHNSON
Expected Effects of Correlated Habitat Variables on Habitat Quality and Bird Distribution 505

WILLIAM B. KRISTAN III
Consequences of Habitat Utilization by Nest Predators and Breeding Songbirds across Multiple Scales in an Urbanizing Landscape 516

JOHN M. MARZLUFF, JOHN C. WITHEY, KARA A. WHITTAKER, M. DAVID OLEYAR, THOMAS M. UNFRIED, STAN RULLMAN, AND JACK DELAP
Seasonal Interactions, Habitat Quality, and Population Dynamics in Migratory Birds 535

D. RYAN NORRIS AND PETER P. MARRA
What is a Winter Floater?  Causes, Consequences, and Implications for Habitat Selection 548

DAVID R. BROWN AND JENNIFER A. LONG
Habitat Selection in a Changing Environment: The Relationship between Habitat Alteration and Spotted Owl Territory Occupancy and Breeding Dispersal 566

MARK E. SEAMANS AND R. J. GUTIÉRREZ

FEATURE ARTICLES

Sexual Dichromatism, Dimorphism, and Condition-Dependent Coloration in Blue-tailed Bee-eaters 577

LYNN SIEFFERMAN, YUAN-JYUN WANG, YI-PING WANG, AND HSIAO-WEI YUAN
Egg Mass Influences Nestling Quality in Tree Swallows, but There Is No Differential Allocation in Relation to Laying Order or Sex 585

LINDA A. WHITTINGHAM, PETER O. DUNN, AND JAN T. LIFJELD
Seed Preferences of Wintering Henslow’s Sparrows 595

JENNIFER K. DIMICELI, PHILIP C. STOUFFER, ERIK I. JOHNSON, CLAUDIA LEONARDI, AND EDGAR B. MOSER
Color Differences among Closely Related Species of Red-Breasted Meadowlarks (Sturnella) 605

PILAR BENITES, PABLO L. TUBARO, DARÍO A. LIJTMAER, STEPHEN C. LOUGHEED, AND MUIR D. EATON
Mitochondrial DNA Variation and Phylogeography of the Eastern and Western Screech-Owls 617

GLENN A. PROUDFOOT, FREDERICK R. GEHLBACH, AND RODNEY L. HONEYCUTT
Forest Edges Negatively Affect Golden-cheeked Warbler Nest Survival 628

REBECCA G. PEAK
Age-Related Survival and Behavior of Snowy Plover Chicks 638

MARK A. COLWELL, SUSAN J. HURLEY, JAMES N. HALL, AND STEPHEN J. DINSMORE
Environmental Correlates of Nesting Success in Red-shouldered Hawks 648

JOAN L. MORRISON, MICHAEL MCMILLIAN, JONATHAN B. COHEN, AND DANIEL H. CATLIN
A Reversed Pattern of Association between Song Dialects and Habitat in the Rufous-collared Sparrow 658


DARÍO A. LIJTMAER AND PABLO L. TUBARO

SHORT COMMUNICATIONS

Corticosterone Levels in Relation to Change of Mate in Black-legged Kittiwakes 668

FREDERIC ANGELIER, BØRGE MOE, CELINE CLEMENT-CHASTEL, CLAUS BECH, AND OLIVIER CHASTEL
Are Nestlings the Cue for Reduction of the Adrenocortical Response to Stress in Male Yellow Warblers Breeding at High Latitude? 675

C. MORGAN WILSON AND REBECCA L. HOLBERTON
Reproductive Biology of the Violet-chested Hummingbird in Venezuela and Comparisons with Other Tropical and Temperate Hummingbirds 680

KAROLINA FIERRO-CALDERÓN AND THOMAS E. MARTIN
The Duetting Behavior of Pacific Coast Plain Wrens 686

JESSICA L. CUTHBERT AND DANIEL J. MENNILL
Using Color to Define Species Boundaries: Quantitative Analysis in the Orchard Oriole Complex Supports the Recognition of Two Species 692

LYNNA M. KIERE, CHRISTOPHER M. HOFMANN, IAN E. TRACY, THOMAS W. CRONIN, JEFF LEIPS, AND KEVIN E. OMLAND
Isotopic Evidence for Sources of Nutrients Allocated to Clutch Formation by Harlequin Ducks 698

JEANINE C. BOND, DANIEL ESLER, AND KEITH A. HOBSON

COMMENTARY

On the Allometric Relationship between Size and Composition of Avian Eggs:  A Reassessment 705

TODD W. ARNOLD AND ANDY J. GREEN

BOOK REVIEWS

Corridor Ecology: The Science and Practice of Linking Landscapes for Biodiversity Conservation, by Jodi A. Hilty, William Z. Lidicker Jr., and Adina M. Merenlender 715

MARK D. DIXON
Conservation across Borders: Biodiversity in an Interdependent World, by Charles C. Chester 716

TERRELL D. RICH
Urban Wildlife Management, by Clark E. Adams, Kieran J. Lindsey, and Sara J. Ash
718

CHRIS MOORMAN