ZOOLOGY. 
149 
Young much more brown ; a wide brownish black band on abdomen ; other under parts yellowish, with a few brownish lines 
and spots. Tail white, with a light broivn hand near tip. 
A large hawk, with legs densely feathered to the toes, and which cannot be easily confounded with any other American 
species. It is distinguished from the young of the black hawk, (A. Sancti Johannis ,) by its smaller size and fewer dark spots 
on the under parts.— Cassin. 
No. 8549, Shoalwater bay, October 31, 1854, (109.) Length, 21 ; extent, 52 inches. Iris, pale brown ; bill, slate colored 
and yellow ; feet, yellow. 
Iii October, 1854, I found a large number of the rough legged buzzard on a low point near 
the seacoast, covered with small pines, where they were sitting like owls, on the dead tree 
tops, occasionally darting down after a mouse, and alighting a short distance off. Sometimes 
they called to each other with a loud scream, but usually sat for hours motionless and silent. 
They varied considerably in the amount and distribution of the white feathers, but the specimen 
shot seemed to be one of the most perfect. One only was of a general dark chocolate color. 
Some remained all winter, and I think a few build near the mouth of the Columbia, where I 
saw young birds in July, 1855.—C. 
Specimen 6853, (581,) killed at Fort Steilacoom, October 20, 1856, measures: length, 21^; 
extent, 52^; wing, 16| inches. Cere and tarsus, yellow; bill, black; iris, greyish yellow.—S. 
ARCHIBUTEO FERRUGINEUS, Gray. 
Squirrel Hawk. 
Buteo ferruginous, Licht. Trans. Acad. Berlin, 1838, p. 428. 
Archibuteo ferrugineus, Gray, Gen. p. 3. 
A. regalis, Gray, Gen. I, pi. 6, (plate only.) 
A. ferrugineus, (Licht.,) Baird & Cassin, Gen. Bep. Birds, p. 34. 
Buteo californicus, Hutchin’s Cal. Magazine, 1857. 
Figured in Birds of Cal. and Texas, I, pi. 26. 
Sp. Ch.—A bove entirely dark brown, and light rufous; tail reddish vjhite, mottled with ashy brown; pale beneath. Under 
parts white, with narrow brown streaks and spots on breast, transverse and mixed with black on abdomen ; flank and axillae 
bright ferruginous. 
Female: length, 23 to 25 ; wing, 17 to 17£; tail, 9 inches. 
Male, smaller. Young: paler, upper tail coverts white spotted with broivn; fewer streaks below ; under wing coverts and edges 
of wing white. —C. 
I shot an adult specimen (female) in December, 1854, in the vicinity of Fort Dalles, 0. T. 
It seemed old and feeble, and, either from weakness or apathy, allowed me to approach very 
closely to its resting place. Its plumage was worn, ragged looking, and appeared as if it had 
not been changed at the previous moulting season. The tail only of this bird I preserved, as 
I had a press of material on hand, and much other business to attend to. On showing it to 
Mr. John Cassin he pronounced it to belong to this species.—S. 
Sub-family MILVINAE—The Kites. 
ELANUS LEUCURUS, Bonaparte. 
The White-tailed. Hawk; the Black-shouldered Hawk. 
Milvus leucurus, Yield. Nouv. Diet. XX, 563, (1818.) 
Elanus leucurus, Vieill, Baird and Cassin, Gen. Bep. Birds, p. 37. 
Elanus leucurus, Bonap. Eur. & Am. Birds. 
Falco dispar, Temminck, PI. Col. I, liv. 54, about 1824. 
“Falco mdanopterus, Daudin.” Bonap. Jour. Acad. Phil. V, 28. 
l ‘Fulco dispar, Temm.” Aud. Orn. Biog. IV, 367. 
