Contents
On the Importance of Stopover Sites to Migrating Birds
Richard L. Hutto
Avian Genitalia
James V. Briskie
Stopover Ecology and Habitat Use of Migratory Wilson's Warblers
Wang Yong, Deborah M. Finch, Frank R. Moore, and Jeffrey F. Kelly
Temperature, Egg Mass, and Incubation Time: a Comparison of Brown-headed Cowbirds and Red-winged Blackbirds
Bill M. Strausberger
Winter Range Expansion and Relationships Between Landscape and Morphometrics of Midcontinent Lesser Snow Geese
Ray T. Alisauskas
Exercise Capacity of House Wren Nestlings: Begging Chicks Are Not Working as Hard as They Can
Mark A. Chappell and Gwen C. Bachman
Nesting Success in Brown-and-yellow Marshbirds: Effects of Timing, Nest Site, and Brood Parasitism
Myriam E. Mermoz and Juan C. Reboreda
Forest Area and Habitat Quality for Nesting Wood Thrushes
Howard J. Weinberg and Roland R. Roth
Evolutionary Differentiation in Three Endemic West Indian Warblers
Irby J. Lovette, Eldredge Bermingham, Gilles Seutin, and Robert E. Ricklefs
Body-fat Levels and Annual Return in Migrating Semipalmated Sandpipers
Charles Pfister, Mark J. Kasprzyk, and Brian A. Harrington
Asymmetrical Force Production in the Maneuvering Flight of Pigeons
Douglas R. Warrick and Kenneth P. Biewener
Effects of Prior Nesting Success on Site Fidelity and Breeding Dispersal: an Experimental Approach
Carola A. Haas
Phylogenetic Relationships among the Trogons
Alejandro Espinosa De Los Monteros
Forest Size and Isolation Have No Effect on Reproductive Success of Eurasian Nuthatches (sitta Europaea)
Erik Matthysen and Frank Adriaensen
Individual and Temporal Variation in Cloacal Protuberance Size of Male Bearded Tits (panurus Biarmicus)
Andreas Sax and Herbert Hoi
Modeling Colony-site Dynamics: a Case Study of Gull-billed Terns (sterna Nilotica) in Coastal Virginia
R. Michael Erwin, James D. Nichols, T. Brian Eyler, Daniel B. Stotts, and Barry R. Truitt
Effects of Double Brooding on Productivity of Crested Caracaras
Joan L. Morrison
Recruitment Models for Mallards in Eastern North America
Susan E. Sheaffer
Diversity and Conservation of Understory Birds in the Tilar
Bruce E. Young, Debra Derosier, and George V. N. Powell
Morphological Differences Relative to Ecological Segregation in Petrels (family: Procellariidae) of the Southern Ocean and Tropical Pacific
Larry B. Spear and David G. Ainley
In Memoriam: Betsy Trent Thomas, 1923-1998
Morton L. Isler and Clemencia Rodner
Reviewers for the Auk, 1998
The Auk
100 Years Ago in the Auk
The Auk
Notes and News
The Auk
Index to Volume 115
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Genetic Differentiation Between Wintering Populations of Lesser Snow Geese Nesting on Wrangel Island
Sergei B. Kuznetsov, Vasily V. Baranyuk, and John Y. Takekawa
Rejection of Cowbird Eggs by Mourning Doves: a Manifestation of Nest Usurpation?
Brian D. Peer and Erick K. Bollinger
Timing of Breeding and Reproductive Costs in Collared Flycatchers
David A. Wiggins, Tomas Part, and Lars Gustafsson
Competition for Nest Sites Between Kelp Gulls (larus Dominicanus) and Terns (sterna Maxima and S Eurygnatha) in Patagonia
Flavio Quintana and Pablo Yorio
Rediscovery of Hylopezus (macularius) Auricularis: Distinctive Song and Habitat Indicate Species Rank
Sjoerd Maijer
Chromosome-specific Intron Size Differences in the Avian Chd Gene Provide an Efficient Method for Sex Identification in Birds
Nate W. Kahn, Judith St. John, and Thomas W. Quinn
Commentary
On the Role of the Referee
Kenneth C. Parkes