Contents
Range Use and Movements of California Condors
Vicky J. Meretsky and Noel F. R. Snyder
Timing of Cranial Pneumatization in White-throated Sparrows
R. Haven Wiley and Walter Piper
Laysan Finch Nest Characteristics, Nest Spacing and Reproductive Success in Two Vegetation Types
Marie P. Morin
Flocking and Frugivory: the Effect of Social Groupings on Resource Use in the Common Bush-tanager
Lisa K. Valburg
Testosterone and Avian Life Histories: Effects of Experimentally Elevated Testosterone on Prebasic Molt and Survival in Male Dark-eyed Juncos
Van Nolan, Ellen D. Ketterson, Charles Ziegenfus, Daniel P. Cullen, and C. Ray Chandler
Reproductive Ecology of Emperor Geese: Annual and Individual Variation in Nesting
Margaret R. Petersen
Reproductive Ecology of Emperor Geese: Survival of Adult Females
Margaret R. Petersen
Carcass Mass, Composition and Gut Morphology Dynamics of Mottled Ducks in Fall and Winter in Louisiana
Thomas E. Moorman, Guy A. Baldassarre, and David M. Richard
Assortative Mating in Urban-breeding Merlins
Lan G. Warkentin, Paul C. James, and Lynn W. Oliphant
Unfounded Assumptions about Diet of the Cooper's Hawk
John Bielefeldt, Robert N. Rosenfield, and Joseph M. Papp
Feeding Ecology of the Dark-rumped Petrel in the Galapagos Islands
M. J. Imber, J. B. Cruz, J. S. Grove, R. J. Lavenberg, C. C. Swift, and F. Cruz
Attraction of the Endangered Dark-rumped Petrel to Recorded Vocalizations in the Galapagos Islands
Richard Podolsky and Stephen W. Kress
Seventy-four New Avian Taxa Documented in Alaska 1976-1991
Daniel D. Gibson and Brina Kessel
Tests of the Function of the Song Repertoire in Bobolinks
Michael S. Capp
A Possible Relationship Between Reversed Sexual Size Dimorphism and Reduced Male Survivorship in the Ruby-throated Hummingbird
Robert S. Mulvihill, Robert C. Leberman, and D. Scott Wood
Age-specific Plumage Characters and Annual Molt Schedules of Hermit Warblers and Townsend's Warblers
Wendy M. Jackson, Christopher S. Wood, and Sievert Rohwer
Book Reviews
Raymond Pierotti
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Commentary
Analysis Error in Brood Parasitism Paper
John T. Lokemoen and Terry L. Shaffer
Short Communications
Ecological Notes on the Green Parakeet of Isla Socorro, Mexico
Ricardo Rodriguez-Estrella, Eustolia Mata, and Laura Rivera
The Autumn Passage of Yellow-bellied Flycatchers in South Texas
Kevin Winker and John H. Rappole
Notes on Food Habits of the Black and White Owl
Carlos Ibanez, Cristina Ramo, and Benjamin Busto
Sex Determination of the Whooping Crane by Analysis of Vocalizations
Glenn Carlson and Charles H. Trost
Color Bands Do Not Affect Dominance Status in Captive Flocks of Wintering Dark-eyed Juncos
Daniel A. Cristol, Catherine S. Chiu, Susan M. Peckham, and James F. Stoll
Dominance Status and Latitude Are Unrelated in Wintering Dark-eyed Juncos
Daniel A. Cristol and David C. Evers
Growth of Induced Feathers in Photostimulated American Tree Sparrows
Douglas W. White and E. Dale Kennedy
Flight Distances of Black-billed Magpies in Different Regimes of Human Density and Persecution
Sue P. Kennedy and Richard L. Knight
The Adaptive Significance of Eggshell Removal by Nesting Birds: Testing the Egg-capping Hypothesis
Todd W. Arnold
Age and Mouth Color in Common Ravens
Bernd Heinrich and John Marzluff