Location in Oregon
Blue is Winter range - Red is Summer range
Purple is Year-round range - Yellow is Migration range

Prairie Falcon

Falco mexicanus - A light brown falcon of the plains, sometimes found in wooded areas. Black axillars (base of underwings) are diagnostic. Plumage is much paler than Peregrine Falcon's, head markings much less distinct. Flight is strong, rapid, and usually low. Call, a series of short loud notes.