15-21" (38-53 cm). Dark gray back; white eyebrow; white cheeks with dark "sideburns"; white neck; white and gray scaling below. Typical falcon wings are pointed; narrow tail. Immatures are brown instead of gray.
Similar Species- Gyrfalcon, Prairie Falcon, Merlin
A loud, shrill, coarse kek-kek-kek-kek-kek-kek.
Nearly cosmopolitan; breeds on every continent except Antarctica.
Found in various open situations from tundra, moorland, steppes, and seacoasts (especially where there are suitable nesting cliffs), to mountains, open forested regions, and populated areas. In Idaho, former and current nest sites are located in both mountain and desert regions, and are generally associated with bodies of water.
Feeds primarily on birds (medium-size passerines up to small waterfowl), but will also eat (rarely or locally) small mammals, lizards, fish, and insects (eaten by young birds). In Idaho, diet consists almost entirely of birds.
Nests on cliff or building May hunt anytime during day, but usually hunts in morning or evening. Initiates prey pursuit from perch or while soaring. May hunt up to several km from nest site. Great- horned Owl is serious nest predator in U.S. (in Idaho, Golden Eagles are also predators). Severe weather may result in high mortality in northern range. Since 1982, 288 captive- reared young have been released in Idaho. The first re-establishing pair of peregrines was discovered in 1985. As of 1995, 13 pairs of peregrines occupied territories in Idaho. In 1995, 6 occupied territories in Idaho successfully fledged an average of 2.7 young/pr.
|U.S. ESA Status:||E(S/)|
|Status:||Protected nongame species|
Levine, E., W. Melquist, and J. Beals. 1995. Idaho peregrine falcon survey, nest monitoring, and release program, 1995. Idaho Dept. Fish & Game, Boise 25pp.