THE CONDOR
Volume 106, Number 2
May 2004 C.E.
Table of Contents

FEATURE ARTICLES  
Genetic Status and Management of California Condors 215
  KATHERINE RALLS AND JONATHAN D. BALLOU
Lack of Spatial Genetic Structure Among Nesting and Wintering King Eiders 229
  JOHN M. PEARCE, SANDRA L. TALBOT, BARBARA J. PIERSON, MARGARET R. PETERSEN, KIM T. SCRIBNER, D. LYNNE DICKSON AND ANDERS MOSBECH
To Winter East or West? Heterogeneity in Winter Site Philopatry in a Central Arctic Population of King Eiders 241
  KATHERINE R. MEHL, RAY T. ALISAUSKAS, KEITH A. HOBSON AND DANA K. KELLETT
Age and Sex Distributions of Wintering Surf Scoters: Implications for the Use of Age Ratios as an Index of Recruitment 252
  SAMUEL A. IVERSON, BARRY D. SMITH AND FRED COOKE
Temporal and Geographic Variation in Survival of Juvenile Black Brant 263
  DAVID H. WARD, JOEL A. SCHMUTZ, JAMES S. SEDINGER, KAREN S. BOLLINGER, PHILIP D. MARTIN AND BETTY A. ANDERSON
Reproductive Consequences for Great Skuas Specializing as Seabird Predators 275
  STEPHEN C. VOTIER, STUART BEARHOP, NORMAN RATCLIFF AND ROBERT W. FURNESS
Glaucous Gull Predation of Goslings on the Yukon-Kuskokwim Delta, Alaska 288
  TIMOTHY D. BOWMAN, ROBERT A. STEHN AND KIM T. SCRIBNER
A Test of Sex Ratio Biasing in the White-throated Magpie Jay, a Cooperative Breeder with Female Helpers 299
  ELENA C. BERG
Grouping and Cooperative Breeding in the Great Slaty Woodpecker 309
  MARTJAN LAMMERTINK
Display Behavior and Spatial Distribution of the Red-headed Manakin in the Atlantic Forest of Brazil 320
  IVANDY N. CASTRO-ASTOR, MARIA ALICE S. ALVES AND ROBERTO B. CAVALCANTI
Wing Molt and Assortative Mating in Common Terns: A Test of the Molt-Signaling Hypothesis 336
  ELI S. BRIDGE AND IAN C.T. NISBET
Individual and Temporal Variation in Inland Flight Behavior of Marbled Murrelets: Implications for Population Monitoring 344
  M. ZACHARIAH PEERY, STEVEN R. BEISSINGER, SCOTT H. NEWMAN, BENJAMIN H. BECKER, ESTHER BURKETT AND TONY D. WILLIAMS
Agonistic Interactions of Nesting and Nonbreeding Macaws 354
  KATHERINE RENTON
Distribution of Sage-Grouse in North America 363
  MICHAEL A. SCHROEDER, CAMERON L. ALDRIDGE, ANTHONY D. APA, JOSEPH R. BOHNE, CLAIT E. BRAUN, S. DWIGHT BUNNELL, JOHN W. CONNELLY, PAT A. DEIBERT, SCOTT C. GARDNER, MARK A. HILLIARD, GERALD D. KOBRIGER, SUSAN M. MCADAM, CLINTON W. MCCARTHY, JOHN J. MCCARTHY, DEAN L. MITCHELL, ERIC V. RICKERSON AND SAN J. STIVER
Genetic Differentiation in the Endangered Black-capped Vireo 377
  VICTOR W. FAZIO III, DONALD B. MILES AND MATTHEW M. WHITE


SHORT COMMUNICATIONS

 
Facultative Rest-Phase Hypothermia in Free-Ranging White-throated Sparrows 386
  ANDREW S. DOLBY, JOHN G. TEMPLE, LAURA E. WILLIAMS, EMILY K. DILGER, KATRINA M. STECHLER AND VANESSA S. DAVIS
You Can't Judge a Pigment by Its Color: Carotenoid and Melanin Content of Yellow and Brown Feathers in Swallows, Bluebirds, Penguins, and Domestic Chicks 390
  KEVIN J. MCGRAW, KAZUMASA WAKAMATSU, SHOSUKE ITO, PAUL M. NOLAN, PIERRE JOUVENTIN, F. STEPHEN DOBSON, RICHARD E. AUSTIC, REBECCA J. SAFRAN, LYNN M. SIEFFERMAN, GEOFFREY E. HILL AND ROBERT S. PARKER
Can Lanchester's Laws Help Explain Interspecific Dominance in Birds? 395
  ERIN L. SHELLEY, MAILE Y. U. TANAKA, ANNA R. RATNATHICAM AND DANIEL T. BLUMSTEIN
Parentage in an Oklahoma Population of Loggerhead Shrikes Assessed Using Nuclear Microsatellites 401
  MATTHEW A. ETTERSON
Egg Discrimination in the Yellowhammer 405
  PETR PROCHÁZKA AND MARCEL HONZA
Spatiotemporal Predictability of Schooling and Nonschooling Prey of Pigeon Guillemots 410
  MICHAEL A. LITZOW, JOHN F. PIATT, ALISA A. ABOOKIRE, SUZANN G. SPECKMAN, MAYUMI L. ARIMITSU AND JARED D. FIGURSKI
Raptor Predation on Wintering Dunlins in Relation to the Tidal Cycle 415
  DICK DEKKER AND RON YDENBERG
Northern Hawk Owls and Recent Burns: Does Burn Age Matter? 420
  KEVIN C. HANNAH AND JEFF S. HOYT
Diet of the Nestling Tree Swallow 423
  JEAN M. MENGELKOCH, GERALD J. NIEMI AND RONALD R. REGAL
How Much Suitable Habitat Is Left for the Last Known Population of the Pale-headed Brush-Finch 429
  STEFFEN OPPEL, H. MARTIN SCHAEFER, VERONIKA SCHMIDT AND BORIS SCHRÖDER

COMMENTARY
 
Estimating Population Trends with a Linear Model: Technical Comments 435
  JOHN R. SAUER, WILLIAM A. LINK AND J. ANDREW ROYLE
Estimating Trends with a Linear Model: Reply to Sauer et al. 440
  JONATHAN BART AND BRIAN COLLINS

BOOK REVIEWS
 
Birds of the Salton Sea: Status, Biogeography, and Ecology, by Michael A. Patten, Guy McCaskie, and Philip Unitt 445
  W. DAVID SHUFORD
Wings Across the Desert: The Incredible Motorized Crane Migration, by David H. Ellis 446
  R. DOUGLAS SLACK
Briefly Noted: Vegemite Sandwich—Birds of Australia, New Zealand, and Antarctica 448
  WILLIAM I. BOARMAN