THE CONDOR
Volume 110, Number 2
May 2008 C.E.
Table of Contents

FEATURE ARTICLES
Factors Influencing Species Richness and Community Composition of Breeding Birds in a Desert Riparian Corridor
199

L. ARRIANA BRAND, GARY C. WHITE, AND BARRY R. NOON
Influence of Moisture on Density and Distribution of Grassland Birds in North Dakota 211

NEAL D. NIEMUTH, JOHN W. SOLBERG, AND TERRY L. SHAFFER
Does Urbanization Filter Birds on the Basis of Their Biological Traits? 223

SOLÈNE CROCI, ALAIN BUTET, AND PHILIPPE CLERGEAU
Sources of Variation in Survival, Recruitment, and Natal Dispersal of the Hawai‘i ‘Elepaio 241

ERIC A. VANDERWERF
Adult and Juvenile Survival of Black-capped Vireos within a Large Breeding Population in Texas 251

RICHARD M. KOSTECKE AND DAVID A. CIMPRICH
Spatial Ecology of Wintering Accipiter Hawks: Home Range, Habitat Use, and the Influence of Bird Feeders 260

TIMOTHY C. ROTH II, WILLIAM E. VETTER, AND STEVEN L. LIMA
Time of Day and Flightiness in Flocks of Semipalmated Sandpipers 269

GUY BEAUCHAMP AND GRAEME D. RUXTON
Captive Breeding Reduces Brain Volume in Waterfowl (Anseriformes) 276

PATRICK-JEAN GUAY AND ANDREW N. IWANIUK
Reevaluating Marine Diets of Surf and White-winged Scoters: Interspecific Differences and the Importance of Soft-Bodied Prey 285

ERIC M. ANDERSON, JAMES R. LOVVORN, AND MATTHEW T. WILSON
Timing and Distance of King Eider Migration and Winter Movements 296

STEFFEN OPPEL, ABBY N. POWELL, AND D. LYNNE DICKSON
Marine Distribution and Behavior of Juvenile and Adult Marbled Murrelets off Southwest Vancouver Island, British Columbia: Applications for Monitoring 306

SARAH N. P. WONG, ROBERT A. RONCONI, ALAN E. BURGER, AND BOB HANSEN
Time Budgets of Common Murres Vary in Relation to Changes in Inshore Capelin Availability 316

SABINA I. WILHELM, CAROLYN J. WALSH, AND ANNE E. STOREY
Population Trends of Tundra-Nesting Birds at Cape Churchill, Manitoba, in Relation to Increasing Goose Populations 325

JOHN E. SAMMLER, DAVID E. ANDERSEN, AND SUSAN K. SKAGEN
Ecomorphology of Migratory and Sedentary Populations of the Yellow-rumped Warbler (Dendroica coronata) 335

BORJA MILÁ, ROBERT K. WAYNE, AND THOMAS B. SMITH
The Links between Plumage Variation and Nest-Site Occupancy in Male House Sparrows 345

EMILY B. MORRISON, TRIA B. KINNARD, IAN R. K. STEWART, JOSEPH P. POSTON, MARGRET I. HATCH, AND DAVID F. WESTNEAT

SHORT COMMUNICATIONS

Passerines are Sexually Dimorphic in Shape as Well as Size 354

ALEXANDER M. MILLS
Concordant and Discordant Signals between Genetic Data and Described Subspecies of Pacific Coast Song Sparrows 359

CHRISTIN L. PRUETT, PETER ARCESE, YVONNE L. CHAN, AMY G. WILSON, MICHAEL A. PATTEN, LUKAS F. KELLER, AND KEVIN WINKER
Molt Scheduling of Western Neotropical Migrants and Up-Slope Movement of Cassin's Vireo 365

VANYA G. ROHWER, SIEVERT ROHWER, AND JESSIE H. BARRY
Using a Multimodel Approach to Estimate the Population Size of McKay’s Buntings 371

STEVEN M. MATSUOKA AND JAMES A. JOHNSON
Winter Survey Data Reveal Rangewide Decline in Evening Grosbeak Populations 376

DAVID N. BONTER AND MICHAEL G. HARVEY
Occurrence and Implications of Double Brooding in a Southern Population of Tree Swallows 382

ADRIAN P. MONROE, KELLY K. HALLINGER, REBECKA L. BRASSO, AND DANIEL A. CRISTOL
Sex-Role Reversal in Song?  Females Sing More Frequently than Males in the Streak-backed Oriole 387

J. JORDAN PRICE, LAILA YUNES-JIMÉNEZ, MARCELA OSORIO-BERISTAIN, KEVIN E. OMLAND, AND TROY G. MURPHY
The Effects of Food Supplementation on Extraterritorial Behavior in Female Northern Cardinals 392

SHEENA K. HUMBIRD AND DIANE L.H. NEUDORF

BOOK REVIEWS

Speciation in Birds, by Trevor Price 396

ALLAN J. BAKER
Silence of the Songbirds, by Bridget Stutchbury 398

ROBERT A. ASKINS
Roger Tory Peterson: A Biography, by Douglas Carlson 399

WILLIAM E. DAVIS JR.
Rare Birds of California, edited by Robert A. Hamilton, Michael A. Patten, and Richard A. Ericson 400

ALEXANDER E. KOONCE
Owls of the United States and Canada: A Complete Guide to Their Biology and Behavior, by Wayne Lynch 402

CARL D. MARTI