Bill about the length of the head, rather stout; wings a little shorter than the tail, which is deeply forked. In winter, the bill black, towards the base brown, and a small portion of the tip yellowish; feet orange; a broad band of black surrounding the eye, and extending toward the nape; fore part of head, cheeks, and all the lower parts pure white; hind head and nape dusky grey, mixed with white; the rest of the upper parts light greyish-blue, excepting the rump, which is white; the primary coverts and quills, as well as the tail-feathers and their coverts, hoary, with the shafts white, but five of the quills dusky on the outer web, on the inner along the shaft, and on the inner margin toward the end. Young, in winter, with the bill somewhat shorter, and more tinged with brown, the lower parts, rump, outer web of lateral tail-feathers, and sides of neck, white; wings as in the adult, but the primaries internally margined with white, and the secondaries tipped with the same; upper part of the head, and the rest of the upper parts, light yellowish-brown, intermixed with greyish-blue; a band of black on the sides of the head, as in the adult. _Adult_, 15-1/2, wing, 10-8/12. From Texas to South Carolina. Common. Migratory. Havell's Tern, Sterna Havelli, Aud. Orn. Biog. v. v. p. 122. 435. 7. Sterna Trudeaui, Aud. Trudeau's Tern. Plate CCCCIX. Fig. 2. Adult. Bill about the length of the head, rather slender; wings a little longer than the tail, which is deeply forked. Bill black, with part of the base of the lower mandible, the edges of both, and their tips to the length of five-twelfths of an inch, yellow; feet orange, claws brown, toward the end yellow; a band of blackish-grey surrounding the eye, and extending toward the nape; fore part of head, cheeks, and upper part of throat, white; the rest of the upper and lower parts light greyish-blue, excepting the axillar feathers, lower wing-coverts, and rump, which are white; tail-coverts and tail greyish-white; primary coverts and quills hoary, but the outer five dusky grey on the inner web, toward the margin, and less so along the shaft, and on the outer web; the shafts of all the quills and tail-feathers white, as are the inner edges of the primaries and tips of the secondaries, the inner excepted. This species has the bill somewhat longer and more slender than that of Havell's Tern, and differently coloured; the tarsus longer, and the lower parts of the body of the same tint as the upper, whereas that species is white beneath. _Adult_, 16; wing, 10-10/12. Great Egg Harbour and Long Island. Rare. Migratory. Trudeau's Tern, Sterna Trudeaui, Aud. Orn. Biog. v. v. p. 125. 436. 8. Sterna arctica, Temm. Arctic Tern. Plate CCL. Male.