Tail tapering, of fourteen tapering feathers, of which the two middle project far beyond the rest. Male with the bill black, the sides of upper mandible pale blue; feet greyish-blue; head, throat, and upper part of neck anteriorly greenish-brown, faintly margined behind with purplish-red; a small part of hind neck dark green; the rest and the upper part in general beautifully undulated with very narrow bars of brownish-black and yellowish-white, smaller wing-coverts, alula, and primary quills grey, the latter dark brown toward the end; speculum coppery-red, changing to dull green, edged anteriorly with light brownish-red, posteriorly with white; inner secondaries and scapulars black and green with broad grey margins; upper tail-coverts cream-coloured, the outer webs blackish and green; tail light grey, the middle feathers dark brown glossed with green; on each side of the neck an oblique band of white, of which colour are the lower parts in general, but the sides undulated like the back, the lateral feathers of the rump cream-coloured, the lower tail-coverts black, and those at the sides edged with white. Female with the upper parts variegated with brownish-black and light yellowish-brown, the margins of the feathers, and a mark on each side of the shaft being of the latter colour; the speculum dusky green, margined behind with white; primary quills greyish-brown; lower parts light brownish-yellow, sides variegated with brown. _Male_, 29, 36. _Female_, 22-1/2, 34. From Texas, throughout the interior, to the Columbia River, and along the Atlantic coast to Maine, during winter, and early spring. Breeds in the Arctic regions. Abundant. Pintail Duck, Anas acuta, Wils. Amer. Orn. v. viii. p. 72. Anas acuta, Bonap. Syn. p. 383. Anas caudacuta, Pintail Duck, Swains. & Rich. F. Bor. Amer. v. ii. p. 441. Pintail or Winter Duck, Anas acuta, Nutt. Man. v. ii. p. 386. Pintail Duck, Anas acuta, Aud. Orn. Biog. v. iii. p. 214; v. v. p. 615. 392. 7. Anas Sponsa, Linn. Wood Duck.--Summer Duck. Plate CCVI. Male and Female.