Waterfowl migration corridors east of the Rocky Mountains in the United States /

Bibliographic Details
Main Author:	Bellrose, Frank C. (Frank Chapman), 1916-2005
Format:	Book
Language:	English
Published:	Urbana : State of Illinois, Natural History Survey Division, 1968.
Series:	Biological notes ; no. 61.
Subjects:	Waterfowl > United States. Birds > Migration. Birds > United States.

Description
Physical Description:	24 pages : maps. ; 28 cm.
Bibliography:	Bibliography: pages 23-24.