_Specific Character._--Bill long and narrow, lead color; at the tip a spot of black, at the corner of the mouth a spot of similar color; neck long and slender; speculum bright purple, with reflecting deep green bordered with black; the feathers broadly tipped with white; tail long and pointed. Adult male with head, cheeks, throat, upper parts of the neck in front and sides, dark brown; a band of light purple behind the eye, extending about three inches on the sides of the neck; on the hind neck a band of black, with green reflections, fading as it extends on the back--a band of white commencing between the two former, passing down the neck on the lower part of the fore neck; breast and fore part of the abdomen white, tinged with pale yellow--hind part of the abdomen and vent greyish-white tinged with yellow, and marked with undulated lines of brown or dusky; at the base of the tail a patch of black; under tail-coverts black, margined with whitish; two middle feathers black, with green reflections, narrow, and about three inches longer than the rest, which are rather long and tapering; upper tail-coverts ash-grey, margined with yellowish-white, with a central streak of dusky. Rump greyish-brown, marked with undulating lines of white; sides of the rump cream color; sides of the body, back, and sides of the breast, marked with undulating lines of black and white. Primaries brown; shafts brownish-white, darker at their tips; secondaries and scapulars black, with green reflections, the former margined with grey, which is the color of the greater part of the outer web, the latter margined with white; speculum bright purple, with splendid green reflections edged with black, the feathers broadly tipped with white. Length twenty-nine inches, wing eleven. Female with the upper part of the head and hind neck dark brown, streaked with dusky; sides of the throat and fore neck lighter; a few touches of rust color on the chin and on the base of the bill. Upper plumage brown, the feathers margined and tipped with brownish-white; lower plumage brownish-white, mottled with brown; speculum less extensive, and without the lengthened tail feathers so conspicuous in the male. This duck is more abundant in the neighborhood of the great lakes than along the margin of the ocean; in epicurean qualities it ranks with the black duck. WOOD-DUCK. Summer-Duck. _Anas Sponsa_, Aud.