Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system
By: by Lewis M. Cowardin, Terry L. Shaffer, and Phillip M. Arnold.
Contributors: Shaffer, Terry L.; Arnold, Phillip M.; United States. National Biological Service.
Series: Biological science report -- 2.
Publisher: U.S. Dept. of the Interior, National Biological Service
Published: 1994
Place of publication: Washington, D.C
Language: eng
Number of pages: 26
Subjects: Ducks -- Habitat -- Prairie Pothole Region; Bird populations -- Prairie Pothole Region; Ducks -- Ecology; Wildlife monitoring -- Prairie Pothole Region; Remote sensing -- Prairie Pothole Region; Prairie Pothole Region
Description: During 1987-90 high-altitude photography, aerial videography, counts, and models to estimate sizes of breeding populations of dabbling ducks and duck production and to identify duck habitat on U.S. fish and Wildlife Service land and easements and on private land in the prairie pothole region of the United States.
Notes: "May 1995."

Includes bibliographical references (p. 25-26).