24 



U. S. p. R. R. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



List of specimens. 



BUTEO HAKLANI, Audubon. 

 Harlan's Buzzard; The Black Warrior. 



Falco Harlani, Add. Orn. Biog. I, 441, (1831, plate published 1830.) 



"Buteo Borealis," Gray, Cat. Brit. Mus. Accipitres, p. 34. 



Buteo Harlani, Ann. Lawrence, Annals N. Y. Lye. Nat. Hist. V, p. 220. 



Figure.— Aud. B. sf Am., pi. 86, Oct. ed. I, pi. 8. 



Adult.— Ahoal the size of, or ratlier smaller than, Buteo borealis. Robust ; bill rather short, strong ; edges of upper mandible 

 lobed ; wing rather long ; tail moderate ; legs strong ; tarsus feathered in front below the joint, naked behind, in front having 

 about nine or ten transverse scales, and about fifteen behind ; claws very strong, sharp, fully curved. Entire plumage 

 brownisli black, with a purplish lustre on the back and wing coverts. Front white, and all the feathers of the liead above and 

 occiput white at base, easily observed on the latter. Quills brownish black, with transverse bands of a lighter shade, and wilh 

 a portion of their inner webs ashy white, giving a nearly uniform ashy white color to the under surface of the wing -, under wing 

 coverts brownish black. Tail mottled with brownish black, ashy and white, the former predominating, a rather wide subter- 

 minal band of brownish black above and below, which are tinges of briglit rufous ; tip paler ; under surface of the tail ashy 

 white, slightly mottled with ashy brown. Bill dark bluish ; legs greenish yellow. 



Young. Entire upper parts light brown, dull fulvous, and white ; tips of the feathers generally with a large ovoid spot of 



brown, bordered with dull fulvous, and white at base, the fulvous and white predominating on tlie head and wing coverts ; 

 rump with nearly regular transverse bands of brown and reddish fulvous ; quills dark brown ; under surface (of quills) white ; 

 under wing coverts white, spotted with brown, and rufous or reddish fulvous ; tail light ashy, tinged with reddish, and with 

 about si.x or seven irregular and imperfect narrow bands of brownish black, all of which are edged with dark reddish fulvous ; 

 tip white. Under parts white, nearly pure on tlic tliroat and breast, wilh ovate and sagittate large spots on the neck before 

 sides and abdomen ; tibiffi and under tail coverts witli nearly regular bands of brown and pale reddisb ; under surface of the tail 

 ashy white. Bill dark bluish ; legs greenish yellow. 



Total length (adult) about 21 inches ; wing 16, tail 9l.< inches. 



In the collection brought by the surveying parly under the command of Captain John Pope, 

 United States army, are two specimens of the bird wliicli we suppose to be Buteo Harlani. 

 These were obtained near Fort Thorne, New Mexico, by T. Charlton Henry, M. D., United 

 States army, and, with that described, as above cited, by Mr. George N. Lawrence, are the 

 only ones yet detected within the limits of the United States. We have seen other specimens 

 of the same species from Mexico. One of the present specimens, like that of Mr. Lawrence, is 

 adult in black plumage ; the other is very probably the young, and in plumage totally different, 

 as described above. 



This bird comes very near the description by Mr. Audubon in his Ornithological Biography, 

 I, p. 441, and is the same species decided by Mr. Lawrence to be tiie Buteo Harlani of that 

 author, and first announced by him as a species of western Nortli America in tlie Annals of the 

 New York Lyceum of Natural History, as above cited. In both size and colors, our i)resent 



