Identifying the factors that limit duck production
By: James K. Ringelman.
Contributors: U.S. Fish and Wildlife Service.
Series: Fish and wildlife leaflet -- 13.2.7.; Waterfowl management handbook
Publisher: U.S. Dept. of the Interior, Fish and Wildlife Service
Published: 1992
Place of publication: [Washington, D.C
Language: eng
Subjects: Ducks -- North America -- Reproduction.; Ducks -- North America -- Breeding.; Waterfowl management -- North America.
Notes: Caption title.

Shipping list no.: 92-0632-P.

Includes bibliographical references (p. 8).

Also available on the world wide web.