Northern Prairie Wildlife Research Center
Figure 17. Sheet metal "wrap-around" predator guards can be used to protect nest boxes placed in trees with diameters of greater than 6 inches.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/nestbox/predblu2.htm
Page Contact Information: Webmaster
Page Last Modified: Friday, 01-Feb-2013 19:38:10 EST
Menlo Park, CA [caww54]
