Southern Rough-winged Swallow (Stelgidopteryx ruficollis) |
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Brazil The Southern Rough-winged Swallow is generally greyish-brown on its upperparts. It has a cinnamon throat above generally greyish brown underparts except for pale yellow on the belly and undertail coverts. |
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It is found in South America from Buenos Aires northward and is replaced in North America by the Northern Rough-winged Swallow (Stelgidopteryx serripennis). It does in fact have a "rough wing" with the outer edge of the outer primary having a serrated edge. |
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There are illustrations in Ridgely & Tudor, Volume 1, Plate 2; Hilty & Brown, Plate 40; and Ridgely & Greenfield, Plate 79, | ||||
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