
Identification Blue-black above with rusty or buff underparts (paler in female); tail very long and deeply forked, with white spots near base below. Forehead and throat usually a deeper rust than breast.
Voice A continuous series of twittering and chattering notes; also a liquid slip-lip.
Habitat Open areas, farmland, marshes, lakeshores, and suburban areas; usually near water.
Range Breeds from Alaska, N. British Columbia, and N. Alberta through S. Canada to Nova Scotia, and south in most of United States; absent from Gulf Coast and parts of the Southeast. Winters in South America.
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