7. Buteo insignatus. Cassin. New species. (March, 1854.) The Canada Buzzard.
Form robust; wings rather long, third quill longest, secondaries emarginate at their tips; quills unusually broad; tail rather short, slightly rounded; tarsi feathered in front below the joint, naked behind, and having in front about ten transverse scales. Under wing-coverts and under tail-coverts white, the former striped longitudinally with pale-ferruginous, and some of them transversely with dark-brown, the latter with transverse stripes of pale reddish-brown. Plumage of the tibiæ dark-ferruginous mixed with brown. Throat and a few feathers in front white, with narrow lines of black. Entire other plumage above and below dark-brown, nearly every feather having a darker or nearly black line on its shaft. Quills above brown, with a purple lustre, beneath pale-ashy, with their shafts white, and irregularly barred with white near their bases. Tail above dark-brown, with an ashy or hoary tinge, and having about ten obscure bands of a darker shade of the same color, beneath nearly white, with conspicuous bands of brown, the widest of which is next to the tip, which is paler. Tarsi and feet yellow. Sex unknown.
Dimensions. Total length (of skin), 17 inches; wing, 14½; tail, 7½ inches.
Hab. Canada (Dr. M’Culloch). Spec. in Mus. Nat. Hist. Soc. of Montreal, Canada.
Obs. Of this very remarkable little Buzzard one specimen only has come under our notice, and is that above described. It belongs to the collection of the Natural History Society of Montreal, by whom it was most kindly sent to Philadelphia for examination at our request, through the good offices of M. M’Culloch, M. D., a distinguished physician and naturalist of that city.
In color, though a true Buteo, this bird differs from any known American species, and more resembles in that respect some stages of the young plumage of Circus hudsonius or C. æruginosus. It was captured in the vicinity of Montreal.
II. GENUS ARCHIBUTEO. Brehm, Isis, 1828, p. 1269.
TRIORCHIS. Kaup, Syst. Eur. Thier., p. 84. (1829.)
BUTAETES. Less., Traité, p. 83. (1831.)
General characters very similar to those of Buteo, but with the tarsus densely feathered to the base of the toes, but more or less naked on the hind part. Toes short; claws moderate; wings rather long. Contains about six species, of both continents.
1. Archibuteo sancti-johannis. (Gmelin.) The Black Hawk. The Rough-legged Buzzard. Falco sancti-johannis and NOVÆ-TERRÆ. Gm., Syst. Nat., I. pp. 273, 274. (1788.) Falco niger. Wils., Am. Orn., VI. p. 82. (1812.) Buteo ater. Vieill., Nouv. Dict., IV. p. 482. (1816.) Falco spadiceus. Gm., Syst. Nat., I. p. 273?
Wilson, Am. Orn., VI. pl. 53, figs. 1, 2; Faun. Bor. Am., Birds, pl. 28; Aud., B. of Am., pl. 422, oct. ed. I. pl. 11.
Large, and rather heavy; wings long; tarsi feathered, a narrow space naked behind; toes naked, and rather short. Adult. Entire plumage glossy black, in many specimens with a brown tinge; forehead, throat, and a large space on the head behind, mixed with white. Tail with one well-defined band of white, and irregularly marked towards the base with the same color. Quills with their inner webs white, most readily seen on the under-surface of the wing. Some specimens have several well-defined bands of white in the tail. Others have the entire plumage dark chocolate-brown, with the head more or less striped with yellowish-white and reddish-yellow. Cere and legs yellow.
Younger. Upper-parts light umber-brown, with the feathers more or less edged with yellowish-white and reddish-yellow; abdomen with a broad transverse band of brownish-black; other under-parts pale yellowish-white, longitudinally striped on the neck and breast with brownish-black; wings and tail brown, tinged with cinereous; quills for the greater part of their length white on their inner webs; tail-feathers white at their bases. Plumage of the tibiæ and tarsi pale reddish-yellow, spotted with brown. Other specimens have the throat and breast with the black color predominating.
Young male? Entire upper-parts light ashy-brown, more or less mixed with white, especially on the head and fulvous; under-parts yellowish white and dark-brown, the latter assuming the form of longitudinal stripes on the breast, and narrow transverse stripes on the abdomen; tarsi and tibiæ dark-brown, striped with dull-white and reddish; greater part of quills and tail white. Cere and legs yellow.
Dimensions. Total length, female, 22 to 24 inches; wing, 17 to 17½; tail, 9 inches. Male—total length, about 20 to 21 inches; wing, 16 to 16½; tail, 8 to 8½ inches.
Hab. Entire North America; Oregon (Townsend). Spec. in Mus. Acad. Philada.
Obs. This is one of the most abundant of the birds of this family, in all the States on the Atlantic, and is one of the most variable in plumage. Two stages of plumage—the adult black bird and the young, when the wide abdominal band of black is well defined—are easily recognized; but there are a variety of other plumages which are difficult to refer to their proper age, sex, or season. Although the stage of plumage described above as perhaps that of the young male (figured by Wilson, pl. 53, fig. 2, and Aud., pl. 422, fig. 2) may be correct, we regard it as by no means established, and in fact are inclined to suspect that there are two distinct species confounded.
2. Archibuteo lagopus. (Gm.) The Rough-legged Buzzard. Falco lagopus. Gmelin, Syst. Nat., I. p. 260. (1788.)