The migration of this species extends to the Fur Countries, where it is said to breed. The description of a male killed on the Saskatchewan River, on the 22d of May 1827, is given in the Fauna Boreali-Americana; and I have a fine male procured by Dr TOWNSEND on the Columbia River. ANAS STREPERA, _Linn._ Syst. Nat. vol. i. p. 200.—_Lath._ Ind. Ornith. vol. ii. p. 859.—_Ch. Bonaparte_, Synopsis of Birds of United States, p. 383. GADWALL, ANAS STREPERA, _Wils._ Amer. Ornith. vol. viii. p. 120, pl. 71, fig. 1.—_Richards._ and _Swains._ Fauna Bor.-Amer. vol. ii. p. 440. GADWALL or GREY, _Nuttall_, Manual, vol. ii. p. 383. Adult Male. Plate CCCXLVIII. Fig. 1. Bill nearly as long as the head, deeper than broad at the base, depressed towards the end, the sides parallel, the tip rounded. Upper mandible with the frontal angles short and obtuse, the dorsal line at first sloping, then slightly concave and direct, the ridge broad and flat at the base, then broadly convex, the edges soft, with about fifty internal lamellæ, the unguis roundish, curved abruptly at the end. Nostrils sub-basal, lateral, rather small, oblong, pervious. Lower mandible flattened, its angle very long and narrow, the dorsal line very short, slightly convex, the edges soft, with about sixty lamellæ. Head of moderate size, oblong, compressed. Neck rather long, slender. Body elongated, slightly depressed. Feet very short; tibia bare for about a quarter of an inch; tarsus very short, compressed, anteriorly with two series of scutella, the outer shorter, the rest covered with reticulated angular scales; toes obliquely scutellate above; first very small, free, with a narrow membrane beneath; third longest, fourth considerably shorter, second shorter than fourth, their connecting webs entire, on the edge crenate; the second or inner toe with a membranous margin. Claws small, slightly arched, compressed, rather acute, the hind one very small and more curved, that of the middle toe with an inner sharp edge. Plumage dense, soft, blended. Feathers of the head short, of the occiput and nape a little elongated, of the lower parts glossy with the extremities of the filaments stiffish. Wings rather long, little curved, pointed; the first quill longest, the rest rapidly graduated; secondaries very broad, but pointed, the inner much elongated, and tapering to a point. The tips of the filaments of the outer web of the first primary are separated and curved a little forwards. Tail short, rounded, of sixteen strong pointed feathers, of which the middle pair project considerably.