Population ecology of the mallard.
By: by Richard S. Pospahala, David. R. Anderson, and Charles J. Henny.
Contributors: Anderson, David Raymond, 1942- joint author.; Henny, Charles J. joint author.
Series: United States. Bureau of Sport Fisheries and Wildlife. Resource publication -- 115.; Resource publication (United States. Bureau of Sport Fisheries and Wildlife) -- 115.
Publisher: U.S. Bureau of Sport Fisheries and Wildlife
Published: 1974
Place of publication: Washington, D.C
Language: eng
Number of pages: 73
Subjects: Mallard.; Birds -- Migration.