Contents
Hybridization in the Red-eyed Towhees of Mexico: the Populations of the Southeastern Plateau Region
Charles G. Sibley and Fred C. Sibley
Effect of Age, Sex, and Level of Fat Deposition on Major Body Components in Some Wood Warblers
David T. Rogers Jr. and Eugene P. Odum
The Relations of Breeding Yellow-bellied Sapsuckers to Wounded Birches and Other Trees
Lawrence Kilham
Seasonal Changes in the Color of Starling Bills
Richard S. Wydoski
Recent Literature
The Auk
Notes and News
The Auk
Obituaries
The Auk
Index to Volume 81
The Auk
General Notes
Albinism in the Herring Gull
Alfred O. Gross
An Additional Record of the Yellow-billed Tropicbird (phaethon Lepturus Catesbyi) from Pennsylvania
Gorman M. Bond
Nesting of the Blue-gray Gnatcatcher on Long Island, New York
Gilbert S. Raynor
New Records of Cattle Egrets in Per
Frank P. Frazier Jr.
Fatal Entanglements of Herring Gulls (larus Argentatus) and Common Terns (sterna Hirundo)
Walter P. Nickell
Diving Times of Wintering Water Birds
Douglas D. Dow
Observations on the Spotted Rail and Pinnated Bittern in Costa Rica
Dale E. Birkenholz and Donald A. Jenni
A Record of the Chestnut-collared Longspur in Florida
Henry M. Stevenson
Two Albino Herring Gulls Found at Rogers City, Michigan
Walter P. Nickell
Covers
Front Matter
The Auk
Back Matter
The Auk