. Key to North American birds; 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. 288 ANATIDiE, DUCKS. GEN. 258, 259. Cass., Proc. Phila. Acad. 1848, 195, and 111. 82, pi. 25; Lawe., Aun. Lye. N. Y. 1852, 220; Bd., 780, and Stansbury's Rep. 322. cyanopteka. 258. Genus SPATULA Boie. l\ \ '"' Shoveller. Broad-UU. Bill twice as wide at the end as at the base ; with very numerous aud prominent lamiure. Head and neck of $ gr
. Key to North American birds; 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. 288 ANATIDiE, DUCKS. GEN. 258, 259. Cass., Proc. Phila. Acad. 1848, 195, and 111. 82, pi. 25; Lawe., Aun. Lye. N. Y. 1852, 220; Bd., 780, and Stansbury's Rep. 322. cyanopteka. 258. Genus SPATULA Boie. l\ \ '"' Shoveller. Broad-UU. Bill twice as wide at the end as at the base ; with very numerous aud prominent lamiure. Head and neck of $ green; fore breast white ; belly purplish-chestnut; wing coverts blue ; speculum green, bordered with black and white ; some scapulars blue, others green, all white- striped ; bill blackish; feet red. 9 known by bill and wings. 20 ; wing 9J; tarsus 1J; bill 2J-2|. N. Am., abundant. Wils., viii, 65, pi. 67, f. 7; NuTT., ii, 375; Aud., vi, 293, pi. 394; Bd., 781. . cltpeata. 259. Genus AIX Swainson. Summer Duch. Wood Duck. Crested; head iridescent green and purple, with parallel curved, white superciliary aud postocular stripes, and a broad, forked, white throat. Fio. 189. Summer Duck. patch; 18-20; Aving 8^-9 J; tail 4J-5; tarsus IJ-IJ; bill l^-; 9 with the head mostly gray. N. Am., abundant, breeding in most sections, nesting in trees. Wils., viii, 97, pi. 70, f. 3; NuTT., ii, 394; Aud., vi, 271, pi. 391; Bd., 785. sponsa. Subfamily FULIGULINJE. Sea Duels. Tarsi scutellate in front; hind toe lobate. The large membranous flap depending from the hind toe distinguishes this group from the preceding, probably without exception. While the general form is the same as that of the Anatince, the feet are notably larger, with relative shorter tarsi, longer toes, and broader webs, and placed somewhat further back, in consequence of which the gait is still more awkward and constrained than the " waddle" of ordinarj' ducks; but swimming jjowers are enhanced, and diving is facilitate
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
