ARTIFICIAL PERCHES FOR RAPTORS

Plans and instructions United States Department of Agriculture ^ Soil ( 5 Conservation Service Davis, CA 95616 Encourage Raptors In Your Area for More Efficient Rodent control. Raptors are birds of prey that are greatly beneficial in the control of rodents. A small, one-time investment in artificial perches can help increase their presence in your area, reducing the need for other methods of pest control.

By providing strategically-located vantage points to these sharp-sighted birds, artificial perches can improve the hunting efficiency of raptors, helping to eliminate rodent pests. These perches can be especially valuable in the winter and early spring, before the primary rodent breeding season and when many crops are either absent or provide little cover. While we are not familiar with: any studies of the impact of artificial perches on rodent population, it would clearly as beneficial to your raptor population if artificial perctles make it easier for them to spot prey and help them use less energy to hunt.

Perch Sites You can encourage more raptors to hunt rodents in your area by establishing artificial perch sites. Raptors hunt in open areas such as mowed alfalfa fields, golf courses, along roadsides, ditch banks, rural school grounds and meadows. Any of these areas are good potential perch sites.

Important Points to Consider All perches should be placed with their horizontal axis pointing east-west to avoid instability due to wind direction and changing visibility due to sun and moonlight. 411 SCS programs and services are offered on a non-di~i~;~ z Artificial perches are readily accepted by many resident raptors, including American kestrels, barn owls, great horned owls, burrowing owls, short-eared owls, redtail and red-shouldered hawks and white-tailed kites.

Perches can be erected any time of year. The acceptance and use of the perches by raptors Indicate that perches may prove useful as a management tool for raptors.
Building a Perch Artificial perches are easy to build. The ideal material is 3/4" galvanized steel pipe, 18' long. Set the pipe about 3 feet deep in the ground with an 18' :; 2" x 2" rounded edge block of pine or redwood as the perch. Or, you can weld a 1 1/2" to 2" x 18" piece of galvanized steel pipe across the top of the vertical support.
Remember to place the perch running east-west, longways. Job sheet compiled by Patrick J. Burfse, (Soil Conservation Service, Escondido) from a research paper, ~Raptor Use of Artificial Perches," by Timothy R. Hall, Walter E. Howard and Rex E. Marsh, Wildlife and Fisheries Biology, University of California at Davis, 1980and 1981 November. 1987 Job Sheet CA-502 }