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Raptor perches trial

We carried out several field tests to determine whether the installation of raptor perches would reduce the damage to alfalfa by pocket gophers. Even though the raptors promptly used the perches and had fed on gophers somewhere, the density of pocket gophers in the test field was not reduced.
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photo by Howdy Howard, published in Saved by Bedbugs (2004)
 
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