Flight speed of birds
By: By May Thacher Cooke.
Series: Circular / United States Department of Agriculture ;; no. 428; Circular (United States. Dept. of Agriculture) ;; no. 428.
Publisher: U.S. Dept. of Agriculture
Published: 1937
Place of publication: Washington, D.C
Language: eng
Number of pages: 14
Subjects: Birds -- Flight.
Notes: Bibliography: p. 10-13.
Contribution from Bureau of Biological Survey.