Contents
Dietary Relationships of Migrant and Resident Birds from a Humid Forest in Central Panama
Brigitte Poulin and Gaetan Lefebvre
Attendance and Diet in Relation to Breeding Success in Herring Gulls (larus Argentatus)
Monika Bukacinska, Dariusz Bukacinski, and Arie L. Spaans
Old Nest Material in Nest Boxes of Tree Swallows: Effects on Nest-site Choice and Nest Building
Wallace B. Rendell and Nicolaas A. Verbeek
Within- and Among-year Effects of Cold Fronts on Migrating Raptors at Hawk Mountain, Pennsylvania, 1934-1991
Paul E. Allen, Laurie J. Goodrich, and Keith L. Bildstein
Relationships Between Genetic Variation and Body Size in Wintering Mallards
Olin E. Rhodes Jr., Loren M. Smith, and Michael H. Smith
Evolution of Host Defenses against Brood Parasitism: Implications of Puncture-ejection by a Small Passerine
Spencer G. Sealy
Epaulet Brightness and Condition in Female Red-winged Blackbirds
Torgeir S. Johnsen, James D. Hengeveld, James L. Blank, Ken Yasukawa, and Val Nolan Jr.
Ecological Correlates of Molt in Merlins (falco Columbarius)
Richard H. Espie, Paul C. James, Ian G. Warkentin, and Lynn W. Oliphant
A Comparative Analysis of Passerine Mobbing Calls
Millicent Sigler Ficken and James Popp
Misuse of Data from Mist-net Captures to Assess Relative Abundance in Bird Populations
J. V. Remsen Jr. and David A. Good
Heavy Metal and Selenium Levels in Feathers of Franklin's Gulls in Interior North America
Joanna Burger
Multiple Parasitism of the Red-winged Blackbird: Further Experimental Evidence of Evolutionary Lag in a Common Host of the Brown-headed Cowbird
David Ward, Anna K. Lindholm, and James N. Smith
Population Fluctuation in Sulawesi Red-knobbed Hornbills: Tracking Figs in Space and Time
Margaret F. Kinnaird, Timothy G. O'Brien, and Suer Suryadi
Mechanisms of Facultative Sex-ratio Variation in Zebra Finches (taeniopygia Guttata)
Ethan D. Clotfelter
Influence of Auditory Stimulation on the Development of Syntactical and Temporal Features in European Starling Song
Joseph Bohner and Dietmar Todt
A Phylogenetic Perspective of Evaporative Water Loss in Birds
Joseph B. Williams
Food Finding and the Influence of Information, Local Enhancement, and Communal Roosting on Foraging Success of North American Vultures
Neil J. Buckley
In Memoriam: Richard R Olendorff, 1943-1994
Marc J. Bechard
Announcements
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Correlates of Mating Success in Indian Peafowl
Shahla Yasmin and H. S. A. Yahya
Consequences for Captive Zebra Finches of Consuming Tall Fescue Seeds Infected with the Endophytic Fungus Acremonium Coenophialum
Michael R. Conover and Terry A. Messmer
Feeding Behavior, Size Asymmetry, and Food Distribution in Magellanic Penguin (spheniscus Magellanicus) Chicks
Daniel E. Blanco, Pablo Yorio, and P. Dee Boersma
Scanning and Tail-flicking in the Australian Dusky Moorhen (gallinula Tenebrosa)
David A. Ryan, Kylie M. Bawden, Kathryn T. Bermingham, and Mark A. Elgar
Nocturnal Nest Attendance of Killdeers: More Than Meets the Eye
Nils Warnock and Lewis W. Oring
Secondary Sex Ratio in Anatinae
Peter Blums and Aivars Mednis
Dna Fingerprinting Reveals Monogamy in the Bushtit, a Cooperatively Breeding Species
Jeffrey P. Bruce, James S. Quinn, Sarah A. Sloane, and Bradley N. White