Uria columba (Pall.), Zoogr. Ross. As. ii. p. 348 (1811) ; (Tacz.), P. O. Sib. O. p. 1222 ; (Seebohm), B. Jap. Emp. p. 275 (part) ; Ridgway, p. 17 ; Ogilvie Grant, Cat. B. Br. Mus. xxvi. p. 586.
Male ad. (Bering Island). Differs from U. grylle in having the bill stouter and more obtuse at the tip, the plumage tinged with grey, the under wing-coverts smoky brown, the white alar patch divided on the outer half by a black V-shaped bar, and the basal part of the quills greyish on the inner web, tail composed of 14, not 12 feathers. Culmen 1.2, wing 7.2, tail 2.0, tarsus 1.3 inch.
Hab. North Pacific, on the Asiatic side on the coasts of Kamchatka, the Commander Islands, the seas of Ochotsk and Japan, and the coasts of Japan and Corea ; on the American side from the Aleutian Islands to Southern California. In habits and nidification it does not differ from U. grylle, but its eggs are as a rule rather larger and more boldly marked
1194. Uria columba