Habitat use and productivity of canvasbacks in southwestern Manitoba, 1961-72

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U.S. Dept. of the Interior, Fish and Wildlife Service, 1982 - Nature - 31 pages
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A study of canvasback (Aythya valisineria) breeding populations, nest success, productivity, and habitat requirements was conducted from 1961 to 1972 on a 181.3 square kilometer area south of Minnedosa, Manitoba.

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