6. Buteo Harlani. (Aud.) Harlan’s Buzzard. The Black Warrior. Falco Harlani. Audubon, Orn. Biog., I. p. 441. (1831. Plate pub. 1830) “Buteo borealis.” Gray, Catalogue of Birds in British Museum, Accipitres, p. 34. Buteo albonotatus. Gray, Cat. Brit. Mus., Accipitres, p. 36; Kaup, Isis, 1847, pp. 329, 369? Aud., B. of Am., pl. 86, oct. ed. I. pl. 8. “Head very large; neck short; body robust. Feet of ordinary length; tarsus a little compressed, scutellate before and behind, reticularly scaly on the sides; toes scutellate above, scaly on the sides, tubercular and scabrous beneath; claws curved, roundish, very acute. Plumage compact; feathers of the head and neck short and rounded; tibial feathers elongated, and loose at the tips. Wings long; first quill short, third and fifth equal; first primaries cut out on the inner web towards the end. Tail longish, ample, of twelve broad, rounded feathers. Bill light-blue, black towards the end; cere and angles of the mouth yellowish-green. Iris light yellowish-brown. Feet dull greenish yellow; claws black. “The general color of the plumage is deep chocolate-brown; the under-parts lighter, the feathers there being margined with light-brown. Tail lighter than the back, and rather narrowly barred with brownish-black, the tips brownish-red. Under wing-coverts whitish, spotted with deep-brown. Length, 21 inches; extent of wings, 45; bill, along the back, 1½; along the gap, from the tip of the lower mandible, 1½; tarsus, 1¾.” (Aud., as above.) Adult? Brownish-black, with a purplish lustre; occipital feathers white at base, and a few white feathers in front at the base of the bill. Under wing-coverts black, with circular spots and irregular bars of white. Quills white on their inner webs for about two-thirds of their length, and transversely barred with pale ashy-brown. Tail above brownish black, tinged with ashy, and with about six to eight bars of black, the widest of which is next to the tip, which is white. Inner webs of the tail-feathers, except the two in the middle, white, mottled with ashy, and with the transverse bars conspicuous; tail beneath ashy-white. Plumage of the back and entire under-parts of the body white at base, and having concealed pairs of circular and oval spots of white most obvious on the abdomen and under tail-coverts. Bill and legs light-colored. Dimensions. Total length (of skin), 20 inches; wing, 16½; tail, 9½ inches. Hab. Louisiana (Audubon); Mexico? Spec. in Mus. Acad. Philada. Obs. The only bird that we have ever seen which appeared to be this species is that described above as probably the adult. It is one of two or three species of black Buzzards which inhabit Mexico and Central America, and we suspect it of being identical with _B. albonotatus_ (Gray, as above), though of that species there is no sufficient description published.