Contents
New Information on the Late Pleistocene Birds from San Josecito Cave, Nuevo Leon, Mexico
David W. Steadman, Joaquin Arroyo-Cabrales, Eileen Johnson, and A. Fabiola Guzman
Patterns of Aggression in Gulls: Asymmetries and Tactics in Different Social Categories
Raymond Pierotti and Cynthia Annett
Year-nd Age-related Variation in the Survival of Adult European Shags Over a 24-year Period
M. P. Harris, S. T. Buckland, S. M. Russell, and S. Wanless
Parental Care at Nests of Two Age Classes of Male American Redstart: Implications for Female Mate Choice
Kevin E. Omland and Thomas W. Sherry
Plumage Variation, Plasma Steroids and Social Dominance in Male House Finches
James R. Belthoff, Alfred M. Dufty Jr., and Sidney A. Gauthreaux Jr.
Testis Mass and Subadult Plumage in Black-headed Grosbeaks
Geoffrey E. Hill
Energetic Benefits of Communal Roosting by Acorn Woodpeckers during the Nonbreeding Season
Morne A. Plessis, Wesley W. Weathers, and Walter D. Koenig
Seasonal Acclimatization of Thermoregulation in the Black-capped Chickadee
Sheldon J. Cooper and David L. Swanson
Foraging Behavior and Nestling Diet of Chestnut-backed Chickadees in Monterey Pine
P. K. Kleintjes and D. L. Dahlsten
Courtship, Copulation, Nesting Behavior and Brood Parasitism in the Venezuelan Stripe-backed Wren
Walter H. Piper
Behavior and Social Organization during the Breeding Season in Mionectes Oleagineus, a Lekking Flycatcher
David A. Westcott and James N. Smith
The Occurrence and Ecology of the Golden-cheeked Warbler in the Highlands of Northern Chiapas, Mexico
Rosa Maria Vidal, Claudia Macias-Caballero, and Charles D. Duncan
Species Status of the White-fronted Manakin, Lepidothrix Serena (pipridae), with Comments on Conservation Biology
Richard O. Prum
Variation in the Structure of Female Brown-headed Cowbird Vocalizations and Its Relation to Vocal Function and Development
Kris Burnell and Stephen I. Rothstein
Brood Parasitism of the Shiny Cowbird, Molothrus Bonariensis, on the Brown-and-yellow Marshbird, Pseudoleistes Virescens
Myriam E. Mermoz and Juan C. Reboreda
The Spatial and Temporal Distribution of Breeding Female Montezuma Oropendolas: Effects on Male Mating Strategies
Michael S. Webster
Seasonal Changes in Day and Night Foraging of Willets in Northeastern Venezuela
Ghislain Rompre and Raymond Mcneil
Survival and Growth of Nestling Vesper Sparrows Exposed to Experimental Food Reductions
Jane S. Adams, Richard L. Knight, Lowell C. Mcewen, and T. Luke George
Effects of Short-term Food Deprivation on Growth of Hand-reared American Kestrels
Juan J. Negro, Alain Chastin, and David M. Bird
Predation on Northern Cardinal Nests: Does Choice of Nest Site Matter?
Tamatha S. Filliater, Randall Breitwisch, and Paul M. Nealen
Determining Homology of Molts and Plumages to Address Evolutionary Questions: a Rejoinder Regarding Emberizid Finches
Christopher W. Thompson and Matthias Leu
Evaluation of Lipid Indices of the Wood Thrush
Courtney J. Conway, William R. Eddleman, and Kenneth L. Simpson
Book Reviews
Christopher W. Thompson
New Books in Ornithology
Christopher W. Thompson
News and Notes
The Condor
Studies in Avian Biology
The Condor
Advertising Rates and Information
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Seasonal Changes in Fatty Acid Composition of the Wood Thrush
Courtney J. Conway, William R. Eddleman, and Kenneth L. Simpson
Interspecific Brood Parasitism of Montezuma Oropendolas by Giant Cowbirds: Parasitism or Mutualism?
Michael S. Webster
Rejection of Foreign Eggs by Yellow-headed Blackbirds
Alfred M. Dufty Jr.
Activity, Survival, Independence and Migration of Fledgling Great Spotted Cuckoos
Manuel Soler, Jose Javier Palomino, Juan Gabriel Martinez, and Juan Jose Soler
Variation in Parental Care with Offspring Age in the Greater Flamingo
Frank Cezilly, Christophe Tourenq, and Alan Johnson
Effects of Height of Neighboring Nests on Nest Predation in the Rufous Turtle-dove (streptopelia Orientalis)
Takeshi Wada
Historical Perspectives
Advances in Studies of Avian Sound Communication
Luis F. Baptista and Sandra L. Gaunt