FALCONID^ — THE FALCONS. 275 



within our borders, to the warm valley of the Gila and the Lower Colorado. 

 We possess no information in regard to any distinctive specific liabits it 

 may possess. This species was first described by Dr. Sclater from a Guate- 

 malan specimen. 



The bird described as B. alhonotatus is presumed to be identical with this 

 species. It was observed by Mr. Salvin on the southern slope of the Cor- 

 dillera, in Guatemala, which appears to be the true habitat of this species, 

 but even there it cannot be said to be common. He states that, like many 

 others of its class, it is a feeder on beetles and locusts. 



Buteo lineatus, Gmelin. 



Var. lineatus, Gmelin. 

 RED-SHOULDERED HAWK. 



Falco lineatus, Gmel. Syst. Nat. p. 268, 1789. — Lath. Ind. Orn. p. 27, 1790 ; Syn. L 56, 

 sp. 36, 1781 ; Gen. Hist. L 268, 1821.— Daud. Tr. Orn. H, 158, 1800. — Shaw' 

 Zool. Vn, 153, 1812. —WiLS. Am. Orn. pi. liii, f. 3, 1808. —AuD. Orn. Biog. I, 

 296, 1831 ; Syn. p. 7, 1839. Cuvier, Reg. Anim. ed. 2, L 334, 1829. Buteo lineatus, 

 Jakd. (Wils.) Am. Orn. H, 290, 1832. — Aun. Syn. p. 7, 1839. — Brewer, (Wils.) 

 Am. Orn. 684, 1852. — Cassin, Birds Cal. & Tex. Syn. 99, 1854 ; Birds N. Am. 1858, 

 28.— Bonap. Comp. Av. p. 19, 1850. — Kaup, Web. Falk. Mus. Senck. 1845, p. 261.— 

 Strickl. Orn. Syn. I, 30, 1855. — Brewer, Oology, 1857, 28, pi. iii, f. 25. — Max. Cab. 

 Journ. VI, 1858, 19. —Gray, Hand List, \, 7, 1869. Poccilopternis lineatus, Kaup 

 Men. Fal. Cent. Orn. p. 76, 1850. Falco hyemalis, Gmel. Syst. Nat. 274, 1789. — 

 Lath. Ind. Orn. 35, 1790 ; Syn. L 79, sp. 62, 1781 ; Gen. Hist. L P- 91. —Daud. 

 Tr. Orn. H, 110, 1800. — Shaw, Zobl. VH, 153, 1812. — \Vil.s. Am. Orn. pi. 35, 

 fig. I, 1808. — Boxap. Ann. Lye. N. Y. H, 33 ; Isis, p. 1138, 1832. — AuD. B. Am. pi. 

 Ivi, 71, 1831 ; Orn. Biog. I, 364, 1831. F. hyemalis, var. Lath. Ind. Orn. Snpp. p. 

 8, 1801 ; Syn. Snpp. U, 39, 1802. Circles hyemalis, Vieill. Ois. Am. Sept. pi. vii, 

 1807. —James. Wils. Am. Orn. L 88 & 87, 1808. B. hyemalis. Less. Tr. Orn. p. 81, 

 1831. — Bonap. Eur. & N. Am. B. p. 3, 1838. Astii,r hyemalis, Jard. ^Vils. Orn. II, 

 72, 1808. — Vieill. Enc. Meth. HI, 1273, 1823. Nisus hyemalis, Cuv. Reg. An. ed. 2, 

 \, 334, 1829. Buteo fuscus, Vieill. Ois. Am. Sept. j)!. v, 1807. Astur fuscus, 

 Bonap. Oss. Cuv. Reg. An. p. 37, 1830. Falco buteoides, Nutt. Man. L 100, 1832. 

 Buteo cooperi (not of Cassin), Allen, Am. Nat. HI, 1869, 518 (young of .6. lineatus!) 



Sp. Char. Adult male (32,509, Washington, D. C, January). Head, neck, and inter- 

 scapulars deep rufous (above becoming darker posteriori}'), each feather with a medial 

 stripe of blackish-brown. Throat and cheeks almost destitute of rufous tinge, the ground 

 being dull white, — the dusky forming an indistinct "mu.stache," and an imperfect, obso- 

 lete collar (formed by confluent, or suffused streaks), across the throat. Breast, sides, 

 abdomen, and tibife rather light rufous, becoming paler posteriorly; breast with shaft- 

 streaks of blackish; the rufous of sides of breast almost unvaried; abdomen, sides, and 

 middle of the breast, with transverse bars of ochraceous white ; tibiae uniform pale ochra- 

 ceous ; anal region and lower tail-coverts, immaculate white. Lesser wing-coverts chest- 

 nut-rufous, feathers with black shaft-streaks, these becoming larger posteriorly ; scapulars 

 and middle wing-coverts edged broadly with rufous, and obsoletely spotted on inner webs 

 with white. — this somewhat exposed; secondaries dark clear brown, tipped and crossed 

 with two (exposed) bands of white ; primaries black, fading at tips into dilute grayish- 



