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American Cliff Swallows breed in large colonies.
Female American Cliff Swallows are known to lay eggs in and move previously laid eggs into the nests of other birds within the colony.
In turn, the House Sparrow has once been recorded as a brood parasite of the American Cliff Swallow.
American Cliff Swallow (Petrochelidon pyrrhonota)
The American Cliff Swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae - the swallows and martins.
American Cliff Swallow (Petrochelidon pyrrhonota)
The American Cliff Swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae - the swallows and martins.
Its brown back, white throat, small size and quick jerky flight separate it at once from similar swallows, such as the House Martin (Delichon urbicum), the Cliff Swallow (Petrochelidon pyrrhonota) or other species of Riparia.
Słownik terminów ornitologicznych
