Contents
Bird Specimens and Documentation: Critical Data for a Critical Resource
Mercedes S. Foster and Peter F. Cannell
Co-occurrences of Foods in Stomachs and Feces of Fruit-eating Birds
Douglas W. White and Edmund W. Stiles
Conductance and Structure of Eggs of Adelie Penguins, Pygoscelis Adeliae, and Its Implications for Incubation
Michael B. Thompson and Kenneth N. Goldie
Analyst and Observer Variability in Density Estimates from Spot Mapping
Jared Verner and Kathleen A. Milne
Statistical Perspectives and Experimental Design When Counting Birds on Line Transects
Joann M. Hanowski, Gerald J. Niemi, and John G. Blake
Red-winged Blackbirds and Brown-headed Cowbirds: Some Aspects of a Host-parasite Relationship
Scott Freeman, David F. Gori, and Sievert Rohwer
Breeding Energetics and Thermal Ecology of the Acorn Woodpecker in Central Coastal California
Wesley W. Weathers, Walter D. Koenig, and Mark T. Stanback
Individual Contributions to Cooperative Nest Care in the Acorn Woodpecker
Ronald L. Mumme, Walter D. Koenig, and Frank A. Pitelka
Water Economy of Granivorous Birds: a Predictive Model
Richard E. MacMillen
Adaptations to Tidal Marshes in Breeding Populations of the Swamp Sparrow
Russell Greenberg and Sam Droege
Comparison of Roost Use by Three Species of Communal Roostmates
Douglas W. Morrison and Donald F. Caccamise
Diet of Nestling Winter Wrens in Relationship to Food Availability
Betrice Van Horne and Ahmad Bader
Foraging Roles of Male and Female Western Grebes during Brood Rearing
L. Scott Forbes and Spences G. Sealy
Habitat Specialization and Foraging Behavior by Birds of Amazonian River Islands in Northeastern Peru
Gary H. Rosenberg
Population Dynamics of the Wood Thrush in Southern Veracruz, Mexico
Kevin Winker, John H. Rappole, and Mario A. Ramos
Patterns of Shiny Cowbird Parasitism in St. Lucia and Southwestern Puerto Rico
William Post, Tammie K. Nakamura, and Alexander Cruz
Social System and Helping Behavior in the White-banded Tanager (neothraupis Fasciata)
Maria Alice Alves
Prey Delivery, Caching, and Retrieval Rates in Nesting Prairie Falcons
Anthonie M. Holthulizen
Calling Behavior of Spotted Owls in Northern Arizona
Joseph L. Ganey
Distribution, Density, and Age Structure of Spotted Owls on Two Southern California Habitat Islands
R. J. Gutierrez and John Pritchard
Total Body Electrical Conductivity (tobec) to Estimate Total Body Fat of Free-living Birds
Gonzalo Castro, Bruce A. Wunder, and Fritz L. Knopf
Fat Scoring: Sources of Variability
David G. Krementz and Grey W. Bendleton
Numbers and Distribution of Sperm in the Uterovaginal Sperm Storage Tubules of the Zebra Finch
T. R. Birkhead, J. E. Pellatt, and F. M. Hunter
Book Reviews
Marcy F. Lawton
News and Notes
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
First Records for the Boreal Owl in New Mexico
Dale W. Stahlecker and John J. Rawinski
Additional Evidence of Multiple Parentage in Eastern Bluebirds
Alvan A. Karlin, Kimberly G. Smith, Micheline C. Stephens, and Rose Ann Barnhill
Daytime Feeding by Leach's Storm-petrel on a Midwater Fish in the Eastern Tropical Pacific
Robert L. Pitman and Lisa T. Ballance
Song as Part of High Intensity Aggressive Interactions of Wintering White-throated Sparrows
Barney A. Schlinger
Sexual Differences in Antipredator Behavior of Breeding American Avocets and Black-necked Stilts
Tex A. Sordahl
The Correct Spelling of Hypoleucus Reichenbach, 1852
Douglas Siegel-Causey