Hab. The whole of North America, except the northern regions; more abundant in the south. Wisconsin (Dr. Hoy), Vermont (Dr. Brewer, Mr. Z. Thompson), Massachusetts (Dr. Emmons), Oregon (U. S. Ex. Exp., Vincennes), California (Dr. Heermann), New Mexico (Dr. Henry), South Carolina (Mr. Audubon, Prof. Gibbes), Texas, Mexico (Lieut. Couch). Spec. in Mus. Acad., Philada. Obs. This handsome species of Owl may be regarded as most properly a southern and western species, being of rather rare occurrence north of Virginia, though it breeds occasionally in the Northern States. It is nearly related to _Strix flammea_ of Europe, but is larger. It very much resembles also several other species of various parts of the world, such as _S. perlata_ of South America, _S. furcata_ of the island of Cuba, and others. Naturalists have, in fact, established species on very slender characters, amongst the owls of this group. It is a very harmless bird, resorting in the south to buildings and outhouses, and subsisting on small animals. Different specimens vary considerably in shade of color and somewhat in dimensions. II. SUB-FAMILY BUBONINÆ. THE HORNED OWLS. Size, various, in some species very large, in others, small; head, large, always furnished with conspicuous ear-tufts, facial disc incomplete in the upper part; legs, feet and claws usually strong. This division contains numerous species of all parts of the world, except Australia. I. GENUS BUBO. Cuvier, Regne Animal, I. p. 331. (1817.) Size, large; general form, very robust and strong; head, large, with prominent ear-tufts; eyes, very large; wings, long, wide; tail, moderate; tarsi short, and with the toes densely feathered; claws, very strong, curved; bill, rather short, curved from the base, strong, covered at base by projecting plumes. This genus contains the large horned Owls of which there are about fifteen species, the greater part being peculiar to Asia and Africa. 1. Bubo virginianus. (Gmelin.) The great horned Owl. The Cat Owl. Strix virginiana. Gm. Syst. Nat. I. p. 287. (1788.) Strix pythaules. Bartram Trav. p. 289. (1791.) Bubo ludovicianus. Daudin Traité d’Orn. II. p. 210. (1800.) Bubo pinicola. Vieill. Ois. d’Am., Sept., I. p. 51. (1807.) Edward’s Birds, II. pl. 60. Vieill., Ois. d’Am., Sept., I. pl. 19. Wilson, Am. Orn., VI. pl. 50. fig. 1. Aud., B. of Am., pl. 61, Oct. ed., I. pl. 39. Nat. Hist. N. Y., pl. 10, fig. 22.