. The birds of Illinois and Wisconsin . Un %^. W^ Family CAPRIMULGID^.. Whip-poor-wills, Nighthawks, etc. See page 168. Bill, small, flattened, and somewhat triangular in shape, the gapevery wide; wings, very long, usually extending beyond the tail. (Chimney Swifts, which belong to a \ \ very different family, are often mis- taken for Swallows when seen flyingabout; they are smoky black and theshafts of the tail feathers extend inspines be^^ond the webs. See nextFamily.) Swallow.

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