Blackbirds and grain crops in the eastern United States
By: by E.R. Kalmbach
Contributors: U.S. Fish and Wildlife Service
Series: Wildlife leaflet -- 220; Wildlife leaflet -- 220.
Publisher: U.S. Dept. of the Interior, Fish and Wildlife Service
Published: 1942
Place of publication: Washington, D.C
Language: eng
Subjects: Blackbirds; Control; Grain; Losses
Notes: Title from caption.

"June 1942."

"This leaflet supersedes Leaflet Bi-908, issued in December 1926, and Wildlife Research and Management Leaflet BS-96, issued in November 1937, by the Bureau of Biological Survey..."