Peregrine Falcon Falco peregrinus Last updated: 1999

• Main Authors: Written David, W. Hays, Ruth L. Milner
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: San Juan; Falco peregrinus; peregrine falcon
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.214.2364; http://www.wdfw.wa.gov/hab/phs/vol4/peregrine_falcon.pdf

Peregrine falcons occur nearly worldwide. In Washington, nesting may occur in all but the driest parts of the state (see Figure 1). Naturally occurring breeding sites are verified along the outer coast, in the San Juan Islands, and in the Columbia Gorge. Young birds have been introduced in unoccupied historical habitat in Skamania, Lewis, Spokane, Asotin, and Yakima counties. RATIONALE The peregrine falcon is a State Endangered species. Peregrine falcon populations have increased in Washington since chlorinated hydrocarbon pesticides were banned in the Figure 1. Washington distribution of the peregrine falcon, Falco peregrinus. Dark shading indicates breeding areas. Light shading in dicates wintering areas. Map derived from Washington Department of