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.

Hab. Northern and Eastern North America. Breeds in Pennsylvania.

Hudson’s Bay (Richardson and Swainson); Canada (Dr. Hall); Oregon (Dr.

Townsend); Washington Territory (Dr. Cooper); Nebraska (Dr. Suckley);

Massachusetts (Dr. Emmons); Long Island (Mr. Giraud).

Obs. This is one of the commonest species of Owls in the Northern and

Eastern States on the Atlantic. It much resembles the European _Otus

vulgaris_, with which American authors have generally considered it

identical, but it is larger and darker colored. It is a shy and secluded

species, seldom venturing far from the woods, and appears to be a

constant resident in the middle and northern States.

2. Otus brachyotus. (Forster.) The Short-eared Owl. The Marsh Owl.

Strix brachyotos. Forster, Philos. Trans. London, LXII. p. 384.

(1772.)

Brachyotus palustris americanus. Bonap., Cons. Av., p. 51. (1849.)

Otus galapagoensis. Gould, Proc. Zool. Soc., London, 1837, p. 10?

Wilson, Am. Orn., IV. pl. 33, fig. 3. Aud., B. of Am., pl. 410; Oct.

ed., I. pl. 38. Nat. Hist. N. Y. Birds, pl. 12, fig. 27.

Ear-tufts very short and inconspicuous; bill short, curved, nearly

concealed by projecting feathers; wings rather long, second quill

longest; tail moderate; tarsi and toes densely feathered. Adult.

Entire plumage buff or pale fulvous, every feather with a wide central

longitudinal stripe of dark brown; under parts pale buff color,

striped longitudinally with brown, more sparingly on the flanks and

abdomen; legs and toes buff, usually of a deeper shade than the under

parts of the body; wing-coverts and secondary quills brown, with large

ovate or circular spots of pale reddish fulvous on their outer-webs;

primaries pale reddish fulvous at their bases, brown at their ends,

with wide irregular bars, and large spots of reddish fulvous; tail

pale fulvous, with about five irregular transverse bands of brown,

which color predominates on the two central feathers; outermost

feathers palest; under tail-coverts nearly pure white; throat white;

eyes surrounded by large black spots; radiating feathers in front of

the eyes white, behind the eyes fulvous, with delicate lines of black

on the shafts of the feathers; ear-tufts brown, widely edged with pale

fulvous; bill and claws dark; irides yellow. Sexes alike.

Dimensions. _Female._—Total length, about 15 inches; wing, 12; tail, 6

inches. _Male._—Smaller.

Hab. The whole of North America and Western South America. Greenland

(Prof. Holboll); Canada (Dr. Hall); Washington Territory (Dr. Cooper);

California (Dr. Heermann); Chili (Lieut. Gillis); Bermuda (Sir W.

Jardine); Cuba (Mr. Lembeye).

Obs. This Owl is of frequent occurrence, especially in the winter

season, throughout the Eastern States of the Union, and appears to

prefer meadows and marshes along the course of rivers or other streams

of water. We have met with it, too, occasionally in straggling bushes in

fields remote from such localities.

This bird has been almost universally considered identical with the bird

known by the same name, which is found throughout Europe and Asia; but

it is nearly or quite as distinct as some other American birds of this

family recognised on all hands as separate species. On comparison of

series of specimens of the two, it will be found that the American are

larger, and for much the greater part darker colored, especially the

females. The name _brachyotus_ is, however, applicable to the American

species only, having been first applied by Forster to an American

specimen in his “Account of the Birds sent from Hudson’s Bay, with

observations relative to their Natural History,” in the Philosophical

Transactions of the Royal Society, London, 1772.

We have had no facilities for comparing the stages of plumage of the

young of the American and European or Asiatic species, but have no doubt

they will be found to present sufficient distinctive characters. We have

omitted the many synonymes of the European bird, for reasons above

intimated.

_Otus galapagoensis_, Gould, is scarcely to be distinguished from our

present bird. Admitting the genus _Brachyotus_, Gould, we think it very

probable that the name of the present species ought to stand _Brachyotus

galapagoensis_ (Gould).

Very fine specimens of this Owl are contained in the large and highly

interesting collection of birds made in Chili, by Lieut. Gilliss, of the

United States Navy. It appears to inhabit the plains on the Pacific, and

nearly all the specimens are of a deeper shade of fulvous than is

usually met with in those of the North, though we have seen specimens of

the latter precisely similar to them.

Illustrations of the Birds of California, Texas, Oregon, British and Russian America · 第 114 / 181 题