December 1987, Vol. 15, No. 6
Birding Duxbury Beach 
Mark J. Kasprzyk 
Why Was It A Cox's Sandpiper? 
Richard A. Forster 
Calidris Paramelanotos: A Perplexing Story 
David C. Morimoto 
Courtship Display And Territorial Defense By Yellow-Breasted Chat 
William E. Davis, Jr. 
More On Glossy Ibises 
Andrew H. Williams 
A Letter From Roger Tory Peterson 
Book Views 
Brian E. Cassie 
Finding 300 Species In Massachusetts In One Year
Herman D'Entremont and Dorothy R. Arvidson
Field Records: June/July 1987
About the Cover: Cox's Sandpiper (after a photo by Simon Perkins)
Meet Our Cover Artist: Barry Van Dusen
At a Glance
Wayne R. Petersen
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