Contents
Annual Variation in the Distribution, Abundance, and Habitat Response of the Palila (loxioides Bailleui)
J. Michael Scott, Stephen Mountainspring, Charles Van Riper, Cameron B. Kepler, James D. Jacobi, Timothy A. Burr, and Jon G. Giffin
Androgens and Mating Systems: Testosterone-induced Polygyny in Normally Monogamous Birds
John C. Wingfield
Effects of Plant Species and Foliage Structure on the Foraging Behavior of Forest Birds
Scott K. Robinson and Richard T. Holmes
On the Adaptive Value of Intraclutch Egg-size Variation in Birds
Tore Slagsvold, Jostein Sandvik, and Gunnar Rofstad
Geographic Variation in Clutch Size in the Northern Flicker (colaptes Auratus): Support for Ashmole's Hypothesis
Walter D. Koenig
100 Years Ago in the Auk
The Auk
Daily Energy Expenditure and Water-turnover Rate of Adult European Starlings (sturnus Vulgaris) during the Nesting Cycle
Robert E. Williams
Applications of Electrophoretic Data in Avian Systematics
Ronald H. Matson
Parental Care and Feeding Ecology of Golden Eagle Nestlings
Michael W. Collopy
Partitioning of Food and Niche Characteristics of Coexisting Accipiter during Breeding
Richard T. Reynolds and E. Charles Meslow
Notes and News
The Auk
Factors Affecting Nest and Site Fidelity in Adirondack Barn Swallows (hirundo Rustica)
William M. Shields
Estimation by Use of Field Weighings of Metabolic Rate and Food Conversion Efficiency in Albatross Chicks
C. Ricketts and P. A. Prince
Comparative Assessment of Food Preferences and Aversions Acquired by Blackbirds via Observational Learning
J. Russell Mason, Adam H. Arzt, and Russell F. Reidinger
Reproduction and Social Organization of the Black-capped Donacobius (donacobius Atricapillus) in Southeastern Peru
Richard A. Kiltie and John W. Fitzpatrick
Maguari Stork Nesting: Juvenile Growth and Behavior
Betsy Trent Thomas
The Effects of Adult Fecal Material on Egg Hatchability in Glaucous-winged Gulls (larus Glaucescens)
Nicolaas A. Verbeek
Changes in Nutrient Reserves and Organ Size of Female Ruddy Ducks Breeding in Manitoba
Michael W. Tome
Factors Influencing Age-related Reproductive Success in the Willow Ptarmigan
Susan J. Hannon and James N. Smith
Clutch Initiation Dates, Clutch Size, and Egg Size of the American Oystercatcher in Virginia
Erica Nol, Allan J. Baker, and Michael D. Cadman
In Memoriam: a Starker Leopold
Ralph J. Raitt
Index to Volume 101
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Breeding of Darwin's Finches at an Unusually Early Age in an El Ni
H. Lisle Gibbs, Peter R. Grant, and Jon Weiland
Age-dependent Variability in the Migratory Orientation of the Savannah Sparrow (passerculus Sandwichensis)
Frank R. Moore
Algae on Jackass Penguins (spheniscus Demersus)
Bridget M. Randall and Rodney M. Randall
Further Insights into Nest-site Competition Between Adelie and Chinstrap Penguins
Wayne Z. Trivelpiece, Susan G. Trivelpiece, and Nicholas J. Volkman
Egg Retrieval by Canada Geese: Apparent Interspecific Retrieval and Tests of Egg Displacement
David C. Duncan
Molts and Plumages of Gadwalls in Winter
Stuart L. Paulus
Interspecific Egg Dumping by a Great Egret and Black-crowned Night Herons
Peter F. Cannell and Brian A. Harrington
Commentaries
How Long is a Long-term Study?
William A. Calder III
On Capitalization of Vernacular Names of Species
Eloise F. Potter