Data for:
Montana, United States
List:

Passeriformes > Icteridae

Red-shouldered Blackbird

Agelaius assimilis

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Identification

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A mostly black inhabitant of swamps and marshes. The male has a telltale orange-red shoulder patch with pale yellow trim, which the female lacks. Both sexes of Tawny-shouldered Blackbird have a yellow-orange shoulder, though the shoulder color is sometimes only visible in flight. The Shiny Cowbird lacks a shoulder patch, is quite glossy, and has a shorter and stouter bill than Red-shouldered Blackbird. The call is a “chut” or “chut-chut” and song is a shrill “Shuh-reee-eee.”

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Learn more about Red-shouldered Blackbird from…

Neotropical Birds

Life histories of all species breeding in Mexico, Central America, and South America