Contents
Prey Size Selection by Tree Swallows
Terry E. Quinney and C. Davison Ankney
Community Organization in Hummingbirds: Relationships Between Morphology and Ecology
James H. Brown and Michael A. Bowers
100 Years Ago in the Auk
The Auk
Philornis Ectoparasitism of Pearly-eyed Thrashers I Impact on Growth and Development of Nestlings
Wayne J. Arendt
Philornis Ectoparasitism of Pearly-eyed Thrashers Ii Effects on Adults and Reproduction
Wayne J. Arendt
Notes and News
The Auk
Diving Depths of Four Alcids
John F. Piatt and David N. Nettleship
Sex Ratios of Red-winged Blackbirds by Egg Size and Laying Sequence
Patrick J. Weatherhead
Genetic Variation and Parentage in a California Population of Acorn Woodpeckers
Ronald L. Mumme, Walter D. Koenig, Robert M. Zink, and Jill A. Marten
Aggressive and Spacing Behavior of Female Blue Grouse
A. T. Bergerud and H. E. Butler
Anatomical Response to Selection for Four-week Body Mass in Japanese Quail
Robert E. Ricklefs and Henry L. Marks
Food Caching in the Tropical Frugivore, Macgregor's Bowerbird (amblyornis Macgregoriae)
M. A. Pruett-Jones and S. G. Pruett-Jones
Song Inheritance and Mating Patterns in Darwin's Finches
Stephen J. Millington and Trevor D. Price
Nest Site Selection and Clutch Predation in the Snowy Plover
Gary W. Page, Lynne E. Stenzel, and Christine A. Ribic
The Adaptive Significance of Clutch Size in Prairie Ducks
Frank C. Rohwer
Fat Deposition and Usage by Arctic-nesting Sandhill Cranes during Spring
Gary L. Krapu, George C. Iverson, Kenneth J. Reinecke, and Cheryl M. Boise
Water Content, Thermogenesis, and Growth Rate of Skeletal Muscles in the European Starling
Robert E. Ricklefs and Tim Webb
Light Attraction in Endangered Procellariiform Birds: Reduction by Shielding Upward Radiation
Jonathan R. Reed, John L. Sincock, and Jack P. Hailman
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Observations of the White-fronted Manakin (pipra Serena) in Suriname
Richard Owen Prum
Evidence of Long-term Pair Bonds in Barrow's Goldeneye (bucephala Islandica)
Jean-pierre L. Savard
The Calls of Male and Female Madeiran Storm-petrels (oceanodroma Castro)
Paul C. James and Hugh A. Robertson
Development of the First North American Colony of Manx Shearwaters
Anne E. Storey and Jon Lien
Long Laying Intervals: a Possible Mechanism and Its Implications
Lee B. Astheimer
The First Recorded Cory's Bittern (ixobrychus Neoxenus") from South America"
Dante Martins Teixeira and Herculano M. F. Alvarenga
Carbon, Nitrogen, Ash, and Caloric Density of the Lean Dry Body Mass of White-crowned Sparrows during Postnuptial Molt
John D. Chilgren
Steller's Jays Steal Gray Jay Caches: Field and Laboratory Observations
Kristi L. Burnell and Diana F. Tomback