Contents
Sex Ratios, Host-specific Reproductive Success, and Impact of Brown-headed Cowbirds
Patrick J. Weatherhead
Annual Survival Rates of Breeding Adult Roseate Terns
Jeffrey A. Spendelow and James D. Nichols
100 Years Ago in the Auk
The Auk
Age and Breeding Performance of European Bee-eaters
C. M. Lessells and J. R. Krebs
Variation in Numbers of Scleral Ossicles and Their Phylogenetic Transformations Within the Pelecaniformes
Kenneth I. Warheit, David A. Good, and Kevin De Queiroz
Age, Resource Availability, and Breeding Effort in Brandt's Cormorant
Robert J. Boekelheide and David G. Ainley
Wintering Wood Thrush Movements and Mortality in Southern Veracruz
John H. Rappole, Mario A. Ramos, and Kevin Winker
Notes and News
The Auk
Genetic Variability in Cory's Shearwater (calonectris Diomedea)
Ettore Randi, Fernando Spina, and Bruno Massa
Cache Size in Shrikes Influences Female Mate Choice and Reproductive Success
Reuven Yosef and Berry Pinshow
The Systematic Position of the Plantcutters, Phytotoma
Scott M. Lanyon and Wesley E. Lanyon
Natural Incubation, Egg Neglect, and Hatchability in the Ancient Murrelet
Anthony J. Gaston and David W. Powell
Body Reserve and Food Use by Incubating Canada Geese
Andrew J. Murphy and David A. Boag
Richness of Breeding Bird Species in Mixed-conifer Forests of the Sierra Nevada, California
Jared Verner and Terry A. Larson
In Memoriam: Robert James Newman
Frances C. James
In Memoriam: Frank B Smithe (1892-1989)
Dean Amadon
Thirty-seventh Supplement to the American Ornithologists' Union Check-list of North American Birds
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Diving Differences Between Western and Clark's Grebes
Gary L. Nuechterlein and Deborah P. Buitron
Vocal Behavior of Swinhoe's Storm-petrel (oceanodroma Monorhis)
Miki Taoka, Pyong-Oh Won, and Hiroshi Okumura
Flight Range Estimates for Shorebirds
Gonzalo Castro and J. P. Myers
Impact of Brown-headed Cowbird Parasitism on the Reproductive Success of the Solitary Vireo
Rebecca E. Marvil and Alexander Cruz
A Comparison of Two Methods of Estimating Breeding Group Size in Harris' Hawks
James W. Dawson and R. William Mannan
Breeding Opportunities, Foraging Rates, and Parental Care in White-winged Crossbills
Craig W. Benkman
An Effective Anti-estrogen for Feral Birds
Alfred M. Dufty Jr.
Implications of Recapture Data for Migration of the Rufous Hummingbird (selasphorus Rufus) in the Rocky Mountains
William A. Calder III and Elinor G. Jones
Genetic Structure and Gene Flow in the Northern Bobwhite
Darrell L. Ellsworth, John L. Roseberry, and W. D. Klimstra
Gull Predation on Cassin's Auklet Varies with the Lunar Cycle
Douglas A. Nelson
Sexual Dimorphism of Chatter-calls and Vocal Sex Recognition in Leach's Storm-petrels (oceanodroma Leucorhoa)
Miki Taoka, Tetsu Sato, Tsutomu Kamada, and Hiroshi Okumura
Breeding Biology of the Sunbittern (eurypyga Helias) in Costa Rica
Bruce E. Lyon and Michael P. Fogden
Commentaries
Response to E Mayr
Charles G. Sibley
Response to E Mayr
Burt L. Monroe Jr.
Statistical Inference from Color-banding Data
Geoffrey E. Hill and David E. Carr
Response to Hill and Carr
John M. Hagan and J. Michael Reed
Sex Ratios of Fledgling Golden Eagles
Gary R. Bortolotti
Response to G R Bortolotti and T W Arnold
Thomas C. Edwards Jr. and Michael W. Collopy