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Publications

USGS Northern Prairie Wildlife Research Center staff publish results of their research in USGS series reports and in peer-reviewed journals. Publication links are below.  Information on all USGS publications can be found at the USGS Publications Warehouse.

Filter Total Items: 1934

An automatic camera device for measuring waterfowl use An automatic camera device for measuring waterfowl use

A Yashica Sequelle camera was modified and equipped with a timing device so that it would take pictures automatically at 15-minute intervals. Several of these cameras were used to photograph randomly selected quadrats located in different marsh habitats. The number of birds photographed in the different areas was used as an index of waterfowl use.
Authors
Lewis M. Cowardin, J.E. Ashe

Adventuresome waterfowl Adventuresome waterfowl

No abstract available.
Authors
H. L. Mendall, H.K. Nelson

White-fronts White-fronts

No abstract available.
Authors
Alexander Dzubin, H.W. Miller, G.V. Schildman

Honkers large and small Honkers large and small

No abstract available.
Authors
H.A. Hansen, H.K. Nelson

Numbered nasal discs for waterfowl Numbered nasal discs for waterfowl

Numbered nasal discs were successfully used in studies requiring large numbers of individually marked waterfowl. The procedure for constructing these discs is outlined. Blue-winged teal (Anas discors) with 5/8-inch discs, and canvasback (Aythya valisineria) and redhead (A. americana) with 3/4-inch discs can be individually identified up to 50 and 80 yards, respectively, with a gunstock...
Authors
James C. Bartonek, C.W. Dane
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