Bill about the same length as the head, slender, and with the mouth and feet vermilion, tinged with carmine; wings about two inches shorter than the tail, which is very deeply forked; upper part of head and occiput greenish-black; sides of head and chin white; upper parts pale greyish-blue, the rump bluish-white, the tail and its coverts white, excepting the outer webs of the two lateral feathers, which are dusky grey; primaries dusky towards the ends, the two outer with their outer webs blackish, all with the greater part of the inner web white, secondaries tipped with white; neck, breast, and sides, pale greyish-blue, like the upper parts, but lighter; abdomen, lower tail-coverts, and lower surfaces of wings and tail, white. _Male_, 15-1/2, 32. Along the coast of the Atlantic in autumn and winter, sometimes as far as New Jersey. Common in Maine, Nova Scotia, and Labrador, where it breeds in multitudes, as well as on the Magdalene Islands, and on the shores of the Arctic Seas. Migratory. Sterna arctica, Bonap. Syn. p. 354. Sterna arctica, Arctic Tern, Swains. & Rich. F. Bor. Amer. v. ii. p. 414. Arctic Tern, Nutt. Man. v. ii. p. 275. Arctic Tern, Sterna arctica, Aud. Orn. Biog. v. iii. p. 366. 437. 9. Sterna Dougallii, Mont. Roseate Tern. Plate CCXL. Male. Bill about the same length as the head, slender, brownish-black, deep orange at the base; feet vermilion; wings about three inches shorter than the tail, which is very deeply forked; upper part of the head and occiput bluish-black; hind neck white; the rest of the upper parts pale bluish-grey, the tail lighter; edges of wings, tips and inner edges of quills, and their shafts, white; first quill black on the outer web and part of the inner, the next two similarly marked, but with the black shaded over with pale grey, the loose barbules being of that colour, the other primaries becoming gradually lighter; lower parts of a beautiful roseate hue, soon fading after death; under surface of wings and tail white. _Male_, 14-10/12, 30. Florida Keys, where it is abundant, and breeds. Migratory. Sterna Dougallii, Mont. Temm. Roseate Tern, Nutt. Man. v. ii. p. 278. Roseate Tern, Sterna Dougallii, Aud. Orn. Biog. v. iii. p. 296. 438. 10. Sterna nigra, Linn. Black Tern. Plate CCLXXX. Adult and Young.