Birds in peril
Subtitle: a guide to the endangered birds of the United States and Canada
By: by John P. S. Mackenzie ; illustrated by Terence Shortt.
Contributors: Shortt, T. M.
Publisher: Pagurian Press
Published: 1977
Place of publication: Toronto
Language: eng
Number of pages: 192
Subjects: Rare birds -- United States.; Rare birds -- Canada.; Birds -- Conservation -- Canada.; Birds -- Conservation -- United States.; Birds -- Canada.; Birds -- United States.
Notes: Bibliography: p. 189-192.