This interesting species we have taken the liberty of dedicating to our esteemed friend, Col. McCall, as a slight memento of long-continued and unbroken friendship, and in testimony of our high appreciation of him as a naturalist, who has contributed much of interest and importance, especially to the ornithology of Western America. III. GENUS OTUS. Cuvier, Regne Animal, I. p. 327. (1817.) Head moderate, furnished with erectile ear-tufts, varying in size in different species; bill rather short, nearly concealed by projecting bristle-like feathers, curved from the base; facial disc more perfect than in the two preceding genera; wings rather long, with the second and third quills longest; tail moderate; legs long; tarsi and toes densely covered with feathers; claws long, curved, very acute; eyes rather small, and surrounded by radiating feathers; facial disc nearly perfect. Contains about ten species of various parts of the world. 1. Otus Wilsonianus. Lesson, Traité d’Orn., I. p. 110. (1831.) The long-eared Owl. Otus americanus. Bonap., Comp. List., p. 7. (1838.) Strix americana. Gm., Syst. Nat., I. p. 288. (1788)? Bonap., Cons. Av., p. 50. Strix peregrinator. Bartram, Trav., p. 289. (1790)? Wilson, Am. Orn., VI. pl. 51, fig. 1. Aud., B. of Am., pl. 383, octavo ed., I. pl. 37. Nat. Hist. N. Y., pl. 11, fig. 24. Ear-tufts long and conspicuous; wings long; tarsi and toes densely feathered. Adult. Entire plumage above mottled with very dark brown (nearly black), ashy-white and fulvous, the former color, brown, predominating; breast pale fulvous, every feather with a wide longitudinal stripe of brownish-black; abdomen white, every feather with a wide longitudinal stripe, and with transverse stripes of brownish-black; legs and toes pale fulvous, usually unspotted, but in some specimens with irregular transverse narrow stripes of dark brown; eye nearly encircled with black, radiating feathers of the face in front of the eye ashy-white, with minute black lines, behind the eye deep fulvous, and narrowly tipped with black; throat white; feathers of the disc tipped with black; ear-tufts brownish-black, edged with ashy-white and fulvous; quills pale fulvous at their bases, with irregular transverse bands of brown, terminating portions brown, with yellowish, ashy, irregular bands, which are mottled with brown; inferior coverts of the wings pale fulvous, in some specimens nearly white, the larger inferior coverts widely tipped with brownish-black, forming a conspicuous transverse band on the under surface of the wing; tail brown, with several irregular transverse bands of ashy fulvous, which bands are mottled as on the quills; bill and claws dark; irides yellow. Sexes probably alike at the same ages. Dimensions. _Female._—Total length, about 15 inches; wing, 11½; tail, 6 inches. _Male._—Smaller.