Contents
Egg-color Dimorphism and Breeding Success in the Crow Tit (paradoxornis Webbiana)
Chang-Hoe Kim, Satoshi Yamagishi, and Pyong-Oh Won
Factors Influencing Rate and Success of Intraspecific Kleptoparasitism among Kelp Gulls (larus Dominicanus)
William K. Steele and Philip A. Hockey
Social Dominance in Young White-throated Sparrows: Effects of Early Social Experience and the Unstable Period
Walter H. Piper
Habitat Preferences of Wintering Shorebirds in a Temporally Changing Environment: Western Sandpipers in the San Francisco Bay Estuary
Sarah E. Warnock and John Y. Takekawa
Population Characteristics of Black-throated Blue Warblers Wintering in Three Sites on Puerto Rico
Joseph M. Wunderle Jr.
Colony Attendance Patterns and Recruitment in Immature Common Murres (uria Aalge)
D. J. Halley, M. P. Harris, and S. Wanless
Is Mononykus a Bird?
Zhonghe Zhou
Influence of Body Condition on Reproductive Decision and Reproductive Success in the Blue Petrel
Olivier Chastel, Henri Weimerskirch, and Pierre Jouventin
Effect of Feathers as Nest Insulation on Incubation Behavior and Reproductive Performance of Tree Swallows (tachycineta Bicolor)
Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, and Timothy S. Kluisza
Seasonal Declines in Duration of Incubation and Chick Periods of Common Murres at Bluff, Alaska in 1987-1991
Edward C. Murphy
Influence of Social Status, Distance from Cover, and Group Size on Feeding and Vigilance in White-crowned Sparrows
Robert Slotow and Stephen I. Rothstein
In Memoriam: Robert T Orr, 1908-1994
Luis F. Baptista
Announcement
The Auk
Index to Volume 112
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Evidence of Emperor Geese Breeding in Russia and Staging in Alaska
Joel A. Schmutz and Alexander V. Kondratyev
First Records of the Shiny Cowbird (molothrus Bonariensis) in the Bahama Archipelago
Michael E. Baltz
High Prevalence of Hematozoa in Nestlings of a Passerine Species, the Pied Flycatcher (ficedula Hypoleuca)
Santiago Merino and Jaime Potti
Use of Fluorescent Powder for Tracking American Woodcock Broods
Ann K. Steketee and William L. Robinson
Lack of Restriction-site Variation in Mitochondrial-dna Control Region of Whooping Cranes (grus Americana)
Sheri A. Snowbank and Carey Krajewski
Female Bluethroats (luscinia S Svecica) Regularly Visit Territories of Extrapair Males Before Egg Laying
Per T. Smiseth and Trond Amundsen
Interspecific Variation in Plasma Hue in Relation to Carotenoid Plumage Pigmentation
Geoffrey E. Hill
An Experimental Test of Offspring Recognition in Western Bluebirds
Marty L. Leonard, Janis L. Horn, and Walter Koenig
Accelerational Implications of Hummingbird Display Dives
James L. Larimer and Robert Dudley
Quantitative Comparison of Two Methods of Assessing Diet of Nestling Skylarks (alauda Arvensis)
John Grynderup Poulsen and Nicholas J. Aebischer
Sunning by Black Noddies (anous Minutus) May Kill Chewing Lice (quadraceps Hopkinsi)
Brett R. Moyer and Gary E. Wagenbach
Do Males Exchange Feathers for Copulations in Tree Swallows?
Linda A. Whittingham, Peter O. Dunn, and Raleigh J. Robertson