. Color key to North American birds . 616, 61 7. Rough-winged Swallow {Stelgidopteryx serri-pennis). L. Ads. Above grayish brown; belowgrayish white, whiter on belly; barbs on outer vane ofouter primary recurved. Yng. Plumage more or lesstipped with rusty. Range.—United States; breeds from Mexico north to Massachusetts,Alanitoba, and British Columbia; winters in Central 211 Perching Birds Chiefly Dull Colored.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1903