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

Swamp Sparrow

Melospiza georgiana - Locally uncommon migrant and winter resident along the coast from early October to early April; rare migrant and winter resident at lower elevations in western Oregon; very rare east of the Cascades. Gives an emphatic tchip call; male's simple trill song has separated notes.