Breeding and wintering areas of mallards harvested in various States and Provinces
By: by Aelred D. Geis.
Series: Special scientific report--wildlife,; no. 144
Publisher: U.S. Bureau of Sport Fisheries and Wildlife; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 59
Subjects: Mallard -- North America.; Duck shooting.; Waterfowl management -- North America.
Notes: Bibliography: p. 10.