Building Nest Structures, Feeders, and Photo Blinds
for North Dakota Wildlife

Entrance Hole Sizes for Duck, Merganser, and Raccoon Nest Boxes

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/wildlife/ndblinds/holes.htm
Page Contact Information: npwrc@usgs.gov
Page Last Modified: August 3, 2006