. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Birds; Ornithology; Oiseaux; Ornithologie. "T t. ^4 I ^ CYPSELID^., SWIFTS.—GEN. 117, 118. 183 Suhfamlly CIIyETUniXyE. Sinne-tatled Sji-ifts. Toos with the normal nunilicr of plialaiigcs; liind toe not revcrsod, but sonic- tiiiies versatile ; our species have it obviously elevated, and sliould have come in the Kej' under A, like gen. 114, 115 ; but it has not been technically so considered (
. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Birds; Ornithology; Oiseaux; Ornithologie. "T t. ^4 I ^ CYPSELID^., SWIFTS.—GEN. 117, 118. 183 Suhfamlly CIIyETUniXyE. Sinne-tatled Sji-ifts. Toos with the normal nunilicr of plialaiigcs; liind toe not revcrsod, but sonic- tiiiies versatile ; our species have it obviously elevated, and sliould have come in the Kej' under A, like gen. 114, 115 ; but it has not been technically so considered (compare § 87, p. 4I>). Tarsi never feathered. In the princii)al genus, ('/id'lxrii, containing about half the species of the subfamily, of various i)arts of tlic world, the tail feathers are stiffened and nuicyoiiali' bj' the projecting rhachis. The other genera are Colhmilia and DeniJinrhi-Iidon of the Old World; ^, and the scarcely diU'erent Xepltoxetes, of the New. 117. Genus NEPHCECETES Baird. lilacli Swift. I'jlackish, nearly uniform. Length iiciirl}^ 7 ; wing as much ; tail about 'A, forked, stitKsli, but not muoronatc. AV^osteru America. Bi>., 142; Elliot, pi. 20 ; Coop., 34!) nigku var. uouealis. 118. Genus CH^TURA Stephens. Chimney Swift. Cliimney ''; Sooty brown with a faint green- ish gloss Jibovc, below paler, becoming gray on the throat; wings black. Lcngtii about 5 ; wing the same ; tail 2 or less, even or a little rountletl, spiny. Eastern United States, migratory, very al)uiulant in summer. Like the swallows, which this bird so curiously resembles, not only in its form, but in its mode of flight, its food, and twitter- ing notes, it has mostly forsaken the Avays of its ancestors, who bred in hollow trees, and now places its curious open-work nest, of bits j.„,. „,, ^^^,„„„„,. ,„,„ „.,^|, ,„„,,„„„to of twig ghied together, inside disused nctnx. chimneys. AViLS., v, 48, pi. 39, f. 1 ; Xitt., i, tiOO
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
