. The birds of Illinois and Wisconsin . A band of white on the wing; tail feathers, not tipped with white. Chordeiles virginianus, and Nos. 200, 200a. No white on the wing; primaries, banded with rufous brownand black; wing, over in. long. Antrostomus carolinensis. No. 198. No white on wing; outer tail feathers,broadly tipped with white; wing, under long. Antrostomus vociferus. Whip-poor-will. See No. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 169 Faonily MICROPODID^. Swifts. Bill, small and weak; mouth, large; feet, small;

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. The birds of Illinois and Wisconsin . A band of white on the wing; tail feathers, not tipped with white. Chordeiles virginianus, and Nos. 200, 200a. No white on the wing; primaries, banded with rufous brownand black; wing, over in. long. Antrostomus carolinensis. No. 198. No white on wing; outer tail feathers,broadly tipped with white; wing, under long. Antrostomus vociferus. Whip-poor-will. See No. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 169 Faonily MICROPODID^. Swifts. Bill, small and weak; mouth, large; feet, small; tail feathers,with sharp spines extending beyond the tips.

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