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Otus, Cuv. Reg. An. 1799. (Type, Strix otus, Linn.)

Asio, Swains. 1831 (nec Brisson, 1760).

Brachyotus, Gould, P. Z. S. 1837, 10. (Type, Stryx brachyotus.)

Ægolius, Keys. & Bl. 1840 (nec Kaup, 1829).

Char. Size medium. Ear-tufts well developed or rudimentary; head small; eyes small. Cere much arched, its length more than the chord of the culmen. Bill weak, compressed. Only the first, or first and second, outer primary with its inner web emarginated. Tail about half the wing, rounded. Ear-conch very large, gill-like, about as long as the height of the skull, with an anterior operculum, which extends its full length, and bordered posteriorly by a raised membrane; the two ears asymmetrical.

Species and Varieties

A. Otus, Cuvier. Ear-tufts well developed; outer quill only with inner web emarginated.

Colors blackish-brown and buffy-ochraceous,—the former predominating above, where mottled with whitish; the latter prevailing beneath, and variegated with stripes or bars of dusky. Tail, primaries, and secondaries, transversely barred (obsoletely in O. stygius).

1. O. vulgaris. Ends of primaries normal, broad; toes feathered; face ochraceous.

Dusky of the upper parts in form of longitudinal stripes, contrasting conspicuously with the paler ground-color. Beneath with ochraceous prevalent; the markings in form of longitudinal stripes, with scarcely any transverse bars. Hab. Europe and considerable part of the Old World … var. vulgaris.19

Dusky of the upper parts in form of confused mottling, not contrasting conspicuously with the paler ground-color. Beneath with the ochraceous overlaid by the whitish tips to the feathers; the markings in form of transverse bars, which are broader than the narrow medial streak. Wing, 11.50–12.00; tail, 6.00–6.20; culmen, .65; tarsus, 1.20–1.25; middle toe, 1.15. Wing-formula, 2, 3–4–1. Hab. North America … var. wilsonianus.

2. O. stygius.20 Ends of primaries narrow, that of the first almost falcate; toes entirely naked; face dusky, or with dusky prevailing.

Above blackish-brown, thinly relieved by an irregular sparse spotting of yellowish-white. Beneath with the markings in form of longitudinal stripes, which throw off occasional transverse arms toward the edge of the feathers. Wing, 13.00; tail, 6.80; culmen, .90; tarsus, 1.55; middle toe, 1.50. Wing-formula, 2, 3–4, 1. Hab. South America.

B. Brachyotus, Gould (1837). Similar to Otus, but ear-tufts rudimentary, and the second quill as well as the first with the inner web emarginated.

Colors ochraceous, or white, and clear dark brown, without shadings or middle tints. Beneath with narrow longitudinal dark stripes upon the whitish or ochraceous ground-color; crown and neck longitudinally striped with dark brown and ochraceous.

3. O. brachyotus. Wings and tail nearly equally spotted and banded with ochraceous and dark brown. Tail with about six bands, the ochraceous terminal. Face dingy ochraceous, blackish around the eyes. Wing, about 11.00–13.00; tail, 5.75–6.10; culmen, .60–.65; tarsus, 1.75–1.80; middle toe, 1.20. Hab. Whole world (except Australia?).

Though this genus is cosmopolitan, the species are few in number; two of them (O. vulgaris and O. brachyotus) are common to both North America and Europe, one of them (the latter) found also in nearly every country in the world. Besides these, South Africa has a peculiar species (O. capensis) while Tropical America alone possesses the O. stygius.

Otus vulgaris, var. wilsonianus, Less

LONG-EARED OWL; LESSER-HORNED OWL

? Strix peregrinator (?), Bart. Trav. 1792, p. 285.—Cass. B. Cal. & Tex. 1854, 196. Asio peregrinator, Strickl. Orn. Syn. I, 1855, 207. Otus wilsonianus, Less. Tr. Orn. 1831, 110.—Gray, Gen. fol. sp. 2, 1844.—Ib. List Birds Brit. Mus. p. 105.—Cass. Birds Cal. & Tex. 1854, 81.—Ib. Birds N. Am. 1858, 53.—Coop. & Suck. 1860, 155.—Coues, Prod. 1866, 14. Otus americanus, Bonap. List, 1838, p. 7.—Ib. Consp. p. 50.—Wederb. & Tristr. Cont. Orn. 1849, p. 81.—Kaup, Monog. Strig. Cont. Orn. 1852, 113.—Ib. Trans. Zoöl. Soc. IV, 1859, 233.—Max. Cab. Jour. VI, 1858, 25.—Gray, Hand List, I, 1869, No. 540, p. 50. Strix otus, Wils. Am. Orn. 1808, pl. li, f. 1.—Rich. & Sw. F. B. A. II, 72.—Bonap. Ann. N. Y. Lyc. II, 37.—Ib. Isis, 1832, 1140.—Aud. Orn. Biog. IV, 572.—Ib. Birds Am. pl. ccclxxxiii.—Peab. Birds, Mass. 88. Ulula otus, Jard. ed. Wils. Am. Orn. I, 1831, 104.—Brewer, ed. Wils. Am. Orn. Synop. p. 687.—Nutt. Man. 130. Otus vulgaris (not of Fleming!), Jardine, ed. Wils. Am. Orn. 1832, II, 278.—Aud. Synop. 1831, 28.—Giraud, Birds Long Island, p. 25. Otus vulgaris, var. wilsonianus (Ridgway), Coues, Key, 1872, 204. Bubo asio, De Kay, Zoöl. N. Y. II, 25, pl. xii, f. 25.

Sp. Char. Adult. Upper surface transversely mottled with blackish-brown and grayish-white, the former predominating, especially on the dorsal region; feathers of the nape and wings (only), ochraceous beneath the surface, lower scapulars with a few obsolete spots of white on lower webs. Primary coverts dusky, with transverse series of dark mottled grayish spots, these becoming somewhat ochraceous basally; ground-color of the primaries grayish, this especially prevalent on the inner quills; the basal third (or less) of all are ochraceous, this decreasing in extent on inner feathers; the grayish tint is everywhere finely mottled transversely with dusky, but the ochraceous is plain; primaries crossed by a series of about seven quadrate blackish-brown spots, these anteriorly about as wide as the intervening yellowish or mottled grayish; the interval between the primary coverts to the first of these spots is about .80 to 1.00 inch on the fourth quill,—the spots on the inner and outer feathers approaching the coverts, or even underlying them; the inner primaries—or, in fact, the general exposed grayish surface—has much narrower bars of dusky. Ground-color of the wings like the back, this growing paler on the outer feathers, and becoming ochraceous basally; the tip approaching whitish; secondaries crossed by nine or ten narrow bands of dusky.

Ear-tufts, with the lateral portion of each web, ochraceous; this becoming white, somewhat variegated with black, toward the end of the inner webs, on which the ochraceous is broadest; medial portion clear, unvariegated black. Forehead and post-auricular disk minutely speckled with blackish and white; facial circle continuous brownish-black, becoming broken into a variegated collar across the throat. “Eyebrows” and lores grayish-white; eye surrounded with blackish, this broadest anteriorly above and below, the posterior half being like the ear-coverts. Face plain ochraceous; chin and upper part of the throat immaculate white. Ground-color below pale ochraceous, the exposed surface of the feathers, however, white; breast with broad longitudinal blotches of clear dark brown, these medial, on the feathers; sides and flanks, each feather with a medial stripe, crossed by as broad, or broader, transverse bars, of blackish-brown; abdomen, tibial plumes, and legs plain ochraceous, becoming nearly white on the lower part of tarsus and on the toes; tibial plumes with a few sagittate marks of brownish; lower tail-coverts each having a medial sagittate mark of dusky, this continuing along the shaft, forking toward the base. Lining of the wing plain pale ochraceous; inner primary coverts blackish-brown, forming a conspicuous spot.

38256 ½ ½

Otus wilsonianus.

♂ (51,227, Carlisle, Penn.; S. F. Baird). Wing formula, 2, 3–1, 4, etc. Wing, 11.50; tail, 6.20; culmen, .65; tarsus, 1.20; middle toe, 1.15.

♀ (2,362, Professor Baird’s collection, Carlisle, Penn.). Wing formula, 2, 3–4–1. Wing, 12.00; tail, 6.00; culmen, .65; tarsus, 1.25; middle toe, 1.15.

Young (49,568, Sacramento, Cal., June 21, 1867; Clarence King, Robert Ridgway). Wings and tail as in the adult; other portions transversely banded with blackish-brown and grayish-white, the latter prevailing anteriorly; eyebrows and loral bristles entirely black; legs white.

Hab. Whole of temperate North America? Tobago? (Jardine).

Localities: Tobago (Jardine, Ann. Mag. 18, 116); Arizona (Coues, P. A. N. S. 1866, 50).

The American Long-eared Owl is quite different in coloration from the Otus vulgaris of Europe. In the latter, ochraceous prevails over the whole surface, even above, where the transverse dusky mottling does not approach the uniformity that it does in the American bird; in the European bird, each feather above has a conspicuous medial longitudinal stripe of dark brownish: these markings are found everywhere except on the rump and upper tail-coverts, where the ochraceous is deepest, and transversely clouded with dusky mottling; in the American bird, no longitudinal stripes are visible on the upper surface. The ochraceous of the lower surface is, in the vulgaris, varied only (to any considerable degree) by the sharply defined medial longitudinal stripes to the feathers, the transverse bars being few and inconspicuous; in wilsonianus, white overlies the ochraceous below, and the longitudinal are less conspicuous than the transverse markings; the former on the breast are broader than in vulgaris, in which, also, the ochraceous at the bases of the primaries occupies a greater extent. Comparing these very appreciable differences with the close resemblance of other representative styles of the two continents (differences founded on shade or depth of tints alone), we were almost inclined to recognize in the American Long-eared Owl a specific value to these discrepancies.

Otus vulgaris.

The Otus stygius, Wagl., of South America and Mexico, is entirely distinct, as will be seen from the foregoing synoptical table.

Habits. This species appears to be one of the most numerous of the Owls of North America, and to be pretty generally distributed. Its strictly nocturnal habits have caused it to be temporarily overlooked in localities where it is now known to be present and not rare. Dr. William Gambel and Dr. Heermann both omit it from their lists of the birds of California, though Dr. J. G. Cooper has since found it quite common. It was once supposed not to breed farther south than New Jersey, but it is now known to be resident in South Carolina and in Arizona, and is probably distributed through all the intervening country. Donald Gunn writes that to his knowledge this solitary bird hunts in the night, both summer and winter, in the Red River region. It there takes possession of the deserted nests of crows, and lays four white eggs. He found it as far as the shores of Hudson’s Bay. Richardson states it to be plentiful in the woods skirting the plains of the Saskatchewan, frequenting the coast of the bay in the summer, and retiring into the interior in the winter. He met with it as high as the 16th parallel of latitude, and believed it to occur as far as the forests extend.

Dr. Cooper met with this species on the banks of the Columbia, east of the Dalles. The region was desolate and barren, and several species of Owls appeared to have been drawn there by the abundance of hares and mice. Dr. Suckley also met with it on a branch of Milk River, in Nebraska. It has likewise been taken in different parts of California, in New Mexico, among the Rocky Mountains, in the valley of the Rio Grande, at Fort Benton, and at Cape Florida, in the last-named place by Mr. Würdemann.

Dr. Cooper found this Owl quite common near San Diego, and in March observed them sitting in pairs in the evergreen oaks, apparently not much troubled by the light. On the 27th of March he found a nest, probably that of a Crow, built in a low evergreen oak, in which a female Owl was sitting on five eggs, then partly hatched. The bird was quite bold, flew round him, snapping her bill at him, and tried to draw him away from the nest; the female imitating the cries of wounded birds with remarkable accuracy, showing a power of voice not supposed to exist in Owls, but more in the manner of a Parrot. He took one of the eggs, and on the 23d of April, on revisiting the nest, he found that the others had hatched. The egg measured 1.60 by 1.36 inches. Dr. Cooper also states that he has found this Owl wandering into the barren treeless deserts east of the Sierra Nevada, where it was frequently to be met with in the autumn, hiding in the thickets along the streams. It also resorts to caves, where any are to be found.

Dr. Kennerly met with this bird in the cañons west of the Aztec Mountains, where they find good places for their nests, which they build, in common with Crows and Hawks, among the precipitous cliffs,—places unapproachable by the wolf and lynx.

On the Atlantic coast the Long-eared Owl occurs in more or less abundance from Nova Scotia to Florida. It is found in the vicinity of Halifax, according to Mr. Downes, and about Calais according to Mr. Boardman, though not abundantly in either region. In Western Maine, and in the rest of New England, it is more common. It has been known to breed at least as far south as Maryland, Mr. W. M. McLean finding it in Rockville. Mr. C. N. Holden, Jr., during his residence at Sherman, in Wyoming Territory, met with a single specimen of this bird. A number of Magpies were in the same bush, but did not seem either to molest or to be afraid of it.

The food of this bird consists chiefly of small quadrupeds, insects, and, to some extent, of small birds of various kinds. Audubon mentions finding the stomach of one stuffed with feathers, hair, and bones.

The Long-eared Owl appears to nest for the most part in trees, and also frequently to make use of the nests of other birds, such as Crows, Hawks, or Herons. Occasionally, however, they construct nests for themselves. Audubon speaks of finding such a one near the Juniata River, in Pennsylvania. This was composed of green twigs with the leaflets adhering, and lined with fresh grass and sheep’s wool, but without feathers. Mr. Kennicott sent me from Illinois an egg of this bird, that had been taken from a nest on the ground; and, according to Richardson, in the fur regions it sometimes lays its eggs in that manner, at other times in the deserted nests of other birds, on low bushes. Mr. Hutchins speaks of its depositing them as early as April. Richardson received one found in May; and another nest was observed, in the same neighborhood, which contained three eggs on the 5th of July. Wilson speaks of this Owl as having been abundant in his day in the vicinity of Philadelphia, and of six or seven having been found in a single tree. He also mentions it as there breeding among the branches of tall trees, and in one particular instance as having taken possession of the nest of a Qua Bird (Nyctiardea gardeni), where Wilson found it sitting on four eggs, while one of the Herons had her own nest on the same tree. Audubon states that it usually accommodates itself by making use of the abandoned nests of other birds, whether these are built high or low. It also makes use of the fissures of rocks, or builds on the ground.

As this Owl is known to breed early in April, and as numerous instances are given of their eggs being taken in July, it is probable they have two broods in a season. Mr. J. S. Brandigee, of Berlin, Conn., found a nest early in April, in a hemlock-tree, situated in a thick dark evergreen woods. The nest was flat, made of coarse sticks, and contained four fresh eggs when the parent was shot.

Mr. Ridgway found this Owl to be very abundant in the Sacramento Valley, as well as throughout the Great Basin, in both regions inhabiting dense willow copses near the streams. In the interior it generally lays its eggs in the deserted nests of the Magpie.

The eggs of this Owl, when fresh, are of a brilliant white color, with a slight pinkish tinge, which they preserve even after having been blown, if kept from the light. They are of a rounded-oval shape, and obtuse at either end. They vary considerably in size, measuring from 1.65 to 1.50 inches in length, and from 1.30 to 1.35 inches in breadth. Two eggs, taken from the same nest by Rev. C. M. Jones, have the following measurements: one 1.60 by 1.34 inches, the other 1.50 by 1.30 inches.

Otus (Brachyotus) brachyotus, Steph

SHORT-EARED OWL; MARSH OWL

Strix brachyotus, Gmel. Syst. Nat. 289, 1789.—Forst. Phil. Trans. LXII, 384.—Wils. Am. Orn. pl. xxxiii, f. 3.—Aud. Birds Am. pl. ccccxxxii, 1831.—Ib. Orn. Biog. V, 273.—Rich. & Swains. F. B. A. II, 75.—Bonap. Ann. Lyc. N. Y. II, 37.—Thomps. N. H. Vermont, p. 66.—Peab. Birds Mass. p. 89. Ulula brachyotus, James. (Wils.), Am. Orn. I, 106, 1831.—Nutt. Man. 132. Otus brachyotus, (Steph.) Jard. (Wils.), Am. Orn. II, 63, 1832.—Peale, U. S. Expl. Exp. VIII, 75.—Kaup, Monog. Strig. Cont. Orn. 1852, 114.—Ib. Tr. Zoöl. Soc. IV, 1859, 236.—Hudson, P. Z. S. 1870, 799 (habits). Asio brachyotus, Strickl. Orn. Syn. I, 259, 1855. Otus brachyotus americanus, Max. Cab. Jour. II, 1858, 27. Brachyotus palustris, Bonap. List. 1838, p. 7.—Ridgw. in Coues, Key, 1872, 204. Otus palustris, (Darw.) De Kay, Zoöl. N. Y. II, 28, pl. xii, f. 27, 1844. Brachyotus palustris americanus, Bonap. Consp. Av. p. 51, 1849. Brachyotus cassini, Brewer, Pr. Boston Soc. N. H.—Newb. P. R. Rep’t, VI, iv, 76.—Heerm. do. VII, 34, 1857.—Cassin (in Baird) Birds N. Am. 1858, 54.—Coop. & Suckl. P. R. Rep’t, XII, ii, 155, 1860.—Coues, P. A. N. S. (Prod. Orn. Ariz.) 1866, 14.—Gray, Hand List, I, 51, 1869. Brachyotus galopagoensis, Gould, P. Z. S. 1837, 10. Otus galopagoensis, Darw. Zool. Beag. pt. iii, p. 32, pl. iii.—Gray, Gen. fol. sp. 3; List Birds Brit. Mus. 108.—Bonap. Consp. 51. Asio galopagoensis, Strickl. Orn. Syn. I, 1855, 211.

Sp. Char. Adult. Ground-color of the head, neck, back, scapulars, rump, and lower parts, pale ochraceous; each feather (except on the rump) with a medial longitudinal stripe of blackish-brown,—these broadest on the scapulars; on the back, nape, occiput, and jugulum, the two colors about equal; on the lower parts, the stripes grow narrower posteriorly, those on the abdomen and sides being in the form of narrow lines. The flanks, legs, anal region, and lower tail-coverts are always perfectly immaculate; the legs most deeply ochraceous, the lower tail-coverts nearly pure white. The rump has obsolete crescentic marks of brownish. The wings are variegated with the general dusky and ochraceous tints, but the markings are more irregular; the yellowish in form of indentations or confluent spots, approaching the shafts from the edge,—broadest on the outer webs. Secondaries crossed by about five bands of ochraceous, the last terminal; primary coverts plain blackish-brown, with one or two poorly defined transverse series of ochraceous spots on the basal portion. Primaries ochraceous on the basal two-thirds, the terminal portion clear dark brown, the tips (broadly) pale brownish-yellowish, this becoming obsolete on the longest; the dusky extends toward the bases, in three to five irregularly transverse series of quadrate spots on the outer webs, leaving, however, a large basal area of plain ochraceous,—this somewhat more whitish anteriorly. The ground-color of the tail is ochraceous,—this becoming whitish exteriorly and terminally,—crossed by five broad bands (about equalling the ochraceous, but becoming narrower toward outer feathers) of blackish-brown; on the middle feathers, the ochraceous spots enclose smaller, central transverse spots of blackish; the terminal ochraceous band is broadest.

Eyebrows, lores, chin, and throat soiled white, the loral bristles with black shafts; face dingy ochraceous-white, feathers with darker shafts; eye broadly encircled with black. Post-orbital circle minutely speckled with pale ochraceous and blackish, except immediately behind the ear, where for about an inch it is uniform dusky.

Lining of the wing immaculate delicate yellowish-white; terminal half of under primary coverts clear blackish-brown; under surface of primaries plain delicate ochraceous-white; ends, and one or two very broad anterior bands, dusky.

♂ (906, Carlisle, Penn.). Wing-formula, 2–1, 3. Wing, 11.80; tail, 5.80; culmen, .60; tarsus, 1.75; middle toe, 1.20.

6888 ½ ½

Otus brachyotus.

6883 ⅓

Otus brachyotus.

♀ (1,059, Dr. Elliot Coues’s collection, Washington, D. C.). Wing-formula, 2–3–1–4. Wing, 13.00; tail, 6.10; culmen, .65; tarsus, 1.80; middle toe, 1.20.

Hab. Entire continent and adjacent islands of America; also Europe, Asia, Africa, Polynesia, and Sandwich Islands.

Localities: Oaxaca (Scl. P. Z. S. 1859, 390); Cuba (Cab. Journ. III, 465; Gundl. Rept. 1865, 225, west end); Arizona (Coues, P. A. N. S. 1866, 50); Brazil (Pelz. Orn. Bras. I, 10); Buenos Ayres (Scl. & Salv. P. Z. S. 1868, 143); Chile (Philippi, Mus. S. I.).

In view of the untangible nature of the differences between the American and European Short-eared Owls (seldom at all appreciable, and when appreciable not constant), we cannot admit a difference even of race between them. In fact, this species seems to be the only one of the Owls common to the two continents in which an American specimen cannot be distinguished from the European. The average plumage of the American representative is a shade or two darker than that of European examples; but the lightest specimens I have seen are several from the Yukon region in Alaska, and one from California (No. 6,888, Suisun Valley).

Not only am I unable to appreciate any tangible differences between European and North American examples, but I fail to detect characters of the least importance whereby these may be distinguished from South American and Sandwich Island specimens (“galopagoensis, Gould,” and “sandwichensis, Blox.”). Only two specimens, among a great many from South America (Paraguay, Buenos Ayres, Brazil, etc.), are at all distinguishable from Northern American. These two (Nos. 13,887 and 13,883, Chile) are somewhat darker than others, but not so dark as No. 16,029, ♀, from Fort Crook, California. A specimen from the Sandwich Islands (No. 13,890) is nearly identical with these Chilean birds, the only observable difference consisting in a more blackish forehead, and in having just noticeable dark shaft-lines on the lower tail-coverts.

Otus brachyotus.

In the geographical variations of this species it is seen that the average plumage of North American specimens is just appreciably darker than that of European, while tropical specimens have a tendency to be still darker. I know of no bird so widely distributed which varies so little in the different parts of its habitat, unless it be the Cotyle riparia, which, however, is not found so far to the south. The difference, in this case, between the American and European birds, does not correspond at all to that between the two easily distinguished races of Otus vulgaris, Nyctale tengmalmi, Surnia ulula, and Syrnium cinereum.

A specimen from Porto Rico (No. 39,643) is somewhat remarkable on account of the prevalence of the dusky of the upper parts, the unusually few and narrow stripes of the same on the lower parts, the roundish ochraceous spots on the wings, and in having the primaries barred to the base. Should all other specimens from the same region agree in these characters, they might form a diagnosable race. The plumage has an abnormal appearance, however, and I much doubt whether others like it will ever be taken.

Habits. The Short-eared Owl appears to be distributed, in varying frequency, throughout North America, more abundant in the Arctic regions during the summer, and more frequently met with in the United States during the winter months. Richardson met with it throughout the fur countries as far to the north as the 67th parallel. Professor Holböll gives it as a bird of Greenland, and it was met with in considerable abundance by MacFarlane in the Anderson River district. Mr. Murray mentions a specimen received from the wooded district between Hudson’s Bay and Lake Winnipeg. Captain Blakiston met with it on the coast of Hudson’s Bay, and Mr. Bernard Ross on the Mackenzie River.

Mr. Dresser speaks of it as common at times near San Antonio during the winter months, keeping itself in the tall weeds and grass. It is given by Dr. Gundlach as an occasional visitant of Cuba.

Dr. Newberry met with it throughout Oregon and California, and found it especially common in the Klamath Basin. On the level meadow-like prairies of the Upper Pitt River it was seen associating with the Marsh Hawk in considerable numbers. It was generally concealed in the grass, and rose as the party approached. He afterwards met with this bird on the shores of Klamath Lake, and in the Des Chutes Basin, among grass and sage-bushes, in those localities associated with the Burrowing Owl (A. hypogæa). In Washington Territory it was found by Dr. Cooper on the great Spokane Plain, where, as elsewhere, it was commonly found in the long grass during the day. In fall and winter it appeared in large numbers on the low prairies of the coast, but was not gregarious. Though properly nocturnal, it was met with, hunting on cloudy days, flying low over the meadows, in the manner of the Marsh Hawk. He did not meet with it in summer in the Territory.

Dr. Heermann found it abundant in the Suisun and Napa valleys of California, in equal numbers with the Strix pratincola. It sought shelter during the day on the ground among the reeds, and, when startled from its hiding-place, would fly but a few yards and alight again upon the ground. It did not seem wild or shy. He afterwards met with the same species on the desert between the Tejon Pass and the Mohave River, and again saw it on the banks of the latter. Richardson gives it as a summer visitant only in the fur countries, where it arrives as soon as the snow disappears, and departs again in September. A female was killed May 20 with eggs nearly ready for exclusion. The bird was by no means rare, and, as it frequently hunted for its prey in the daytime, was often seen. Its principal haunts appeared to be dense thickets of young pines, or dark and entangled willow-clumps, where it would sit on a low branch, watching assiduously for mice. When disturbed, it would fly low for a short distance, and then hide itself in a bush, from whence it was not easily driven. Its nest was said to be on the ground, in a dry place, and formed of withered grass. Hutchins is quoted as giving the number of its eggs as ten or twelve, and describing them as round. The latter is not correct, and seven appears to be their maximum number.

Mr. Downes speaks of it as very rare in Nova Scotia, but Elliott Cabot gives it as breeding among the islands in the Bay of Fundy, off the coast, where he found several nests. It was not met with by Professor Verrill in Western Maine, but is found in other parts of the State. It is not uncommon in Eastern Massachusetts, where specimens are frequently killed and brought to market for sale, and where it also breeds in favorable localities on the coast. Mr. William Brewster met with it on Muskeget, near Nantucket, where it had been breeding, and where it was evidently a resident, its plumage having become bleached by exposure to the sun, and the reflected light of the white sand of that treeless island. It is not so common in the interior, though Mr. Allen gives it as resident, and rather common, near Springfield. Dr. Wood found it breeding in Connecticut, within a few miles of Hartford.

Dr. Coues gives it as a resident species in South Carolina, and Mr. Allen also mentions it, on the authority of Mr. Boardman, as quite common among the marshes of Florida. Mr. Audubon also speaks of finding it so plentiful in Florida that on one occasion he shot seven in a single morning. They were to be found in the open prairies of that country, rising from the tall grass in a hurried manner, and moving in a zigzag manner, as if suddenly wakened from a sound sleep, and then sailing to some distance in a direct course, and dropping among the thickest herbage. Occasionally the Owl would enter a thicket of tangled palmettoes, where with a cautious approach it could be taken alive. He never found two of these birds close together, but always singly, at distances of from twenty to a hundred yards; and when two or more were started at once, they never flew towards each other.

Mr. Audubon met with a nest of this Owl on one of the mountain ridges in the great pine forest of Pennsylvania, containing four eggs nearly ready to be hatched. They were bluish-white, of an elongated form, and measured 1.50 inches in length and 1.12 in breadth. The nest, made in a slovenly manner with dry grasses, was under a low bush, and covered over with tall grass, through which the bird had made a path. The parent bird betrayed her presence by making a clicking noise with her bill as he passed by; and he nearly put his hand on her before she would move, and then she hopped away, and would not fly, returning to her nest as soon as he left the spot. The pellets disgorged by the Owl, and found near her nest, were found to consist of the bones of small quadrupeds mixed with hair, and the wings of several kinds of coleopterous insects.

This bird was found breeding near the coast of New Jersey by Mr. Krider; and at Hamilton, Canada, on the western shore of Lake Ontario; Mr. McIlwraith speaks of its being more common than any other Owl.

A nest found by Mr. Cabot was in the midst of a dry peaty bog. It was built on the ground, in a very slovenly manner, of small sticks and a few feathers, and presented hardly any excavation. It contained four eggs on the point of being hatched. A young bird the size of a Robin was also found lying dead on a tussock of grass in another similar locality.

The notes of Mr. MacFarlane supply memoranda of twelve nests found by him in the Anderson River country. They were all placed on the ground, in various situations. One was in a small clump of dwarf willows, on the ground, and composed of a few decayed leaves. Another nest was in a very small hole, lined with a little hay and some decayed leaves. This was on a barren plain of some extent, fifty miles east of Fort Anderson, and on the edge of the wooded country. A third was in a clump of Labrador Tea, and was similar to the preceding, except that the nest contained a few feathers. This nest contained seven eggs,—the largest number found, and only in this case. A fourth was in an artificial depression, evidently scratched out by the parent bird. Feathers seem to have been noticed in about half the nests, and in all cases to have been taken by the parent from her own breast. Nearly all the nests were in depressions made for the purpose.

Mr. Dall noticed the Short-eared Owl on the Yukon and at Nulato, and Mr. Bannister observed it at St. Michael’s, where it was a not unfrequent visitor. In his recent Notes on the Avi-fauna of the Aleutian Islands, (Pr. Cal. Academy, 1873,) Dall informs us that it is resident on Unalashka, and that it excavates a hole horizontally for its nesting-place,—usually to a distance of about two feet, the farther end a little the higher. The extremity is lined with dry grass and feathers. As there are no trees in the island, the bird was often seen sitting on the ground, near the mouth of its burrow, even in the daytime. Mr. Ridgway found this bird in winter in California, but never met with it at any season in the interior, where the O. wilsonianus was so abundant.

The eggs of this Owl are of a uniform dull white color, which in the unblown egg is said to have a bluish tinge; they are in form an elliptical ovoid. The eggs obtained by Mr. Cabot measured 1.56 inches in length and 1.25 in breadth. The smallest egg collected by Mr. MacFarlane measured 1.50 by 1.22 inches. The largest taken by Mr. B. R. Ross, at Fort Simpson, measures 1.60 by 1.30 inches; their average measurement is 1.57 by 1.28 inches. An egg of the European bird measures 1.55 by 1.30 inches.