Contents
Subalular Apterium in Birds
William G. George and Clark L. Casler
Third Decennial Census of Kirtland's Warbler
Harold F. Mayfield
Balloonists' Reports of Sounds Audible to Migrating Birds
E. D'Arms and D. R. Griffin
The Effect of Directional Training on Initial Orientation in Pigeons
Judith R. Alexander and William T. Keeton
Clutch Size and Evolution in the Charadrii
Gordon L. Maclean
Systematics and Evolution of the North American Merlins
Stanley A. Temple
Behavior and Feather Structure of the Quetzal
A. Labastille, D. G. Allen, and L. W. Durrell
Incubation, Care of Young, and Nest Success of the Common Grackle (quiscalus Quiscula) in Northern Ohio
George R. Maxwell Jr. and Loren S. Putnam
Cowbird-host Relationships
Daniel S. Mcgeen
Sympatry of Laysan and Black-footed Albatrosses
Harvey I. Fisher
In Memoriam: Lee Saunders Crandall
William G. Conway
Habitat Utilization of the Red-cockaded Woodpecker during the Winter
Douglass H. Morse
Aou Committees 1971-72
The Auk
Periodical Literature
The Auk
Obituaries
The Auk
Notes and News
The Auk
General Notes
Sooty Tern Feeding on Moths
James J. Dinsmore and William B. Robertson Jr.
Wing Clapping in Territorial and Courtship Behavior of the Chuck-will's-widow and Poor-will (caprimulgidae)
Robert M. Mengel, Roger S. Sharpf, and Glen E. Woolfenden
Copulation by California Condors
Sanford R. Wilbur and John C. Borneman
Canada Goose-osprey Interactions
Dennis L. Flath
Postbreeding Assemblies of Ring-necked Ducks in Eastern Nova Scotia
Anthony J. Erskine
Death of Red-breasted Nuthatch from Pitch around Nest Hole
Lawrence Kilham
The Juvenal Plumage and Relationships of Lophostrix Cristata
Robert W. Storer
Notes on Metopothrix Aurantiacus
Melvin A. Traylor
A Case of Interspecific Homosexuality in Geese
Edward E. Starkey
Long-billed Curlew with Supernumerary Hallux
Dennis M. Forsythe
Covers
Front Matter
The Auk
Back Matter
The Auk