Northern Prairie Wildlife Research Center
Floor Depth Entrance Diameter Height
Species of Cavity of Cavity above Floor of Entrance above Ground
(inches) (inches) (inches) (inches) (feet)
Bluebird 5 X 5 8 6 1 1/2 5-10
Chickadee 4 X 4 8-10 6-8 1 1/8 6-15
Titmouse 4 X 4 8-10 6-8 1 1/4 6-15
Nuthatch 4 X 4 8-10 6-8 1 1/4 12-20
Bewick's Wren 4 X 4 6-8 4-6 1 - 1 1/4 6-10
Carolina Wren 4 X 4 6-8 4-6 1 1/2 6-10
Purple Martin 6 X 6 6 2 2 1/2 10-15
Crested
Flycatcher 6 X 6 8-10 6-8 2 8-20
Flicker 7 X 7 16-18 14-16 2 1/2 6-20
Red-Headed
Woodpecker 6 X 6 12-15 9-12 2 12-20
Downy
Woodpecker 4 X 4 9-12 6-8 1 1/4 6-20
Robin 6 X 8 8 (one or more sides open) 6-15
Barn Swallow 6 X 6 6 (one or more sides open) 8-12
Phoebe 6 X 6 6 (one or more sides open) 8-12
Screech Owl 8 X 8 12-15 9-12 3 10-30
Wood Duck 10 - 18 10-24 12-16 4 10-20
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/birdhous/specs.htm
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Page Last Modified: Friday, 01-Feb-2013 18:12:32 EST
Menlo Park, CA [caww54]