Cover
Front Matter
Bird Observer
Back Matter
Bird Observer
Contents
Block Island
Robert P. Fox
Field Identification of the Lesser Black-backed Gull
Richard R. Veit
Book Review: A Guide to Hawk Watching in North American, and Hawks and Owls of North America by Donald S. Heintzelman
Alden Clayton
The Spring Migration March - May 1980
Richard S. Heil and Robert H. Stymeist