Part 22

Description.—Larger than a Crow; face with round ruff of feathers about eyes; legs very long and lanky, with sparse feathering down to tips of toes. Face white, with reddish brown area about eye and narrow ring of reddish brown at outer edge of facial disc; upperparts golden brown, much variegated with fine gray barring and black and white speckling; underparts white, buffy, or ochraceous, finely spotted with black. The under surface of the wings is principally white, but the flight-feathers, as well as the tail, are narrowly barred with dark gray; bill pale flesh-color; eyes black. Length: 18 inches.

Range in Pennsylvania.—A fairly common though somewhat local summer resident, chiefly in the southern and southeastern counties, and only rarely in the northern and mountainous counties and at high altitudes, from late March to November; occasional in winter. In the western counties it has been known to nest as far north as Crawford County.

Nest.—In a large cavity in a tree, often a sycamore, or in a barn or loft wherever the eggs may be laid with safety. Eggs: 5 to 9, white.

When a country newspaper announces the capture of a creature, half monkey and half bird, the bird student may be fairly certain that someone has found a Barn Owl. The strange, melancholy expression of the bird’s face, its peculiarly awkward, long legs, and its odd habit of bowing, hissing, and swaying back and forth, all make it an object of great curiosity.

The Barn Owl can see perfectly by day, though it is chiefly nocturnal. It preys upon rats, mice, and shrews principally, and is almost altogether beneficial in its food-habits. All Owls have the habit of throwing up wads of indigestible matter, such as the bones and fur of the mice they have eaten. An examination of the pellets of the Barn Owl has shown that these creatures eat but very few birds and virtually no game.

Half-grown young in their nest, clamoring for food, make a considerable outcry. They have insatiable appetites and during early summer the parents are kept busy bringing in rats and mice for their hungry offspring.

The Barn Owl’s golden brown and gray back, its white appearance beneath, and its lack of any ear-tufts are good field-marks. This species is protected in Pennsylvania.

LONG-EARED OWL Asio otus wilsonianus (Lesson)

Other Names.—Cat Owl; Cedar Owl; Hoot Owl.

Description.—Size medium, about that of a Crow; head with two prominent tufts of feathers which are nearly always held erect in life; feet fully feathered. Upperparts gray, mottled with buffy brown and speckled with black and white; tail with six or eight dark gray bars; face whitish to rich buff, bordered by black; ear-tufts black margined with whitish or buffy; underparts whitish, washed irregularly with buffy—the breast broadly and irregularly streaked and the sides and belly barred with dark brown and gray; feet buffy; eyes bright yellow. Length: 15 inches.

Range in Pennsylvania.—A fairly common, though somewhat local resident, which may migrate to an extent when food is scarce during winter. It is usually to be found near hemlocks.

Nest.—A flat platform of twigs, sometimes built upon the old nest of a squirrel or Crow, lined with finer materials and a few belly feathers from the owls. Sometimes an old Crow nest is used without any renovation or addition. Eggs: 4 to 6, white.

Long-eared Owls are neither noisy nor bold, and may therefore live in a region without being known unless the bird student assiduously searches for them in dense hemlock clumps, in cedars, or thick grape-vine tangles, where they are usually to be found. They are principally nocturnal, and it is sometimes difficult to make the birds fly from their perches during the day. Any medium-sized owl which flies from a dense hemlock is likely to be of this species. Its general appearance, at such a time, is grayish.

It is a highly beneficial bird, living almost altogether on mice which it captures both in the woodlands and at the edges of fields. These it swallows wherever it may be, but the pellets are usually cast up during the daytime at the favorite resting-place, so after a few months’ sojourn at one point the pellets become numerous. Pellets of this nature, strewn over the ground, are always a fairly sure sign of the presence of owls.

The young, which resemble their parents in color, are remarkably adept at clambering about their nesting-tree before they can fly. They are odd in appearance when newly hatched, with their queer eyes and large mouths. Since the eggs are laid and hatch at intervals of two or three days each, the young are of different sizes.

The call-note of this Owl, which I have not frequently heard, resembles a Screech Owl’s quavering whistle somewhat, but is shorter, more whining, and less musical, and is varied with angry, coughing sounds. This species is protected in Pennsylvania.

SHORT-EARED OWL Asio flammeus (Pontoppidan)

Other Names.—Meadow Owl; Marsh Owl; Swamp Owl; Bog Owl.

Description.—Size medium, like the Long-eared Owl; head with very small tufts, not apparent in field. Dark brown above, the feathers margined with buffy brown, the wings spotted and barred with buffy, the tail with rich buffy and brown bands of about equal width; underparts buffy or whitish, streaked, broadly on breast, narrowly on belly, with dark brown; feet buffy; eyes yellow. Length: 15 inches.

Range in Pennsylvania.—A fairly common and regular migrant from March 1 to April 15 and sometimes later and from October 1 to November 15. It has been known to nest once or twice within the Commonwealth; it is sometimes found in winter, particularly in the lowlands of the less mountainous counties.

The Short-eared Owl sometimes hunts during the day. It courses over the meadows and marshes, its wide, soft wings carrying it easily but rather unsteadily, a few feet from the ground. As a rule, it prefers to hunt at eventide.

It nearly always perches on the ground. Its coloration is protective as it sits among the dead grasses or cat-tail leaves, motionless until it springs awkwardly into the air and makes off. It does not often alight in trees, though it may occasionally roost in low, dense bushes or conifers.

As the Short-ear flies away, the light spots on the upper surfaces of the wing and the dark spots at the bend of the wing on the under surface are usually noticeable. Any medium-sized owl which flies up from the ground in the open is almost certain to be of this species.

Its food habits are strictly beneficial. It captures mice, preferring to hunt in the open, almost never capturing its prey in the woodlands. It is often found in large flocks during the period of migration. In fact, where one occurs others are likely to be found. Flocks sometimes number a hundred or more individuals. When these owls visit a farm in such numbers for a week or two, they may effectively destroy the mice and other destructive small mammals.

The Short-eared Owl is curious; squeaking cries, given in imitation of a mouse or small bird, will sometimes cause it to come very close, where it may hover for several seconds, if the observer remains perfectly motionless. The Short-eared Owl is protected in Pennsylvania.

BARRED OWL Strix varia varia Barton

Other Names.—Hoot Owl; Black-eyed Owl (rare).

Description.—Much larger than a Crow; no tufts on the head; feet feathered almost to claws. Upperparts dull chocolate-brown, each feather with two or three grayish white or buffy bars, especially noticeable on scapulars; tail and wings distinctly barred; face grayish, finely barred with dark gray; underparts whitish or grayish white, tinged with buff, the breast distinctly barred, the belly and sides streaked with dark brown; bill greenish yellow; eyes very large, dark brown with blue-black pupils. Length: 20 inches.