OTHER
NAMES:
Big Hoot Owl; Cat Owl; Virginia Owl; Virginia
Horned Owl. |
GENERAL
DESCRIPTION:
Length, 24 inches; spread of wings, 60 inches.
Color above, sooty-brown or dusky, mottled with
grayish-white; below, whitish, barred with dark.
Ear-tufts very conspicuous, about 2 inches in
length; toes fully feathered; 3 or 4 outer
primaries notched or cut away on inner webs. |
ADULTS:
Plumage in general, tawny basally, this partially
exposed on crown and hindneck, on
shoulders,.rump, and sides of breast, sometimes
on other portions of the under parts; general
color of upper parts, dark sooty-brown or dusky,
much broken by coarse transverse mottling of
grayish-white, the dusky greatly predominating on
crown and hindneck, where forming broad ragged or
coarsely and irregular saw-toothed longitudinal
stripes which become blended on forehead;
shoulders and some of the middle and greater
wing-coverts with inconspicuous irregular spots
or blotches of whitish; secondaries more minutely
mottled (producing a more grayish effect), and
crossed by about five to eight bands of mottled
dusky; primary coverts, darker, crossed by three
of four bands of blackish; primaries with ground
color more ochraceous or buffy, finely mottled or
penciled, and crossed by six to nine transverse
series of square spots of dusky; ground color of
tail, light tawny, transversely mottled with
dusky, more whitish terminally, and crossed by
six or seven bands of mottled dusky, these about
equal in width to the paler interspaces and bands
broken or sometimes even quite obliterated on
middle tail-feathers where the darker markings
have an oblique or, sometimes, even longitudinal
tendency; ear-tufts with outer webs black, their
inner webs mostly ochraceous;
"eyebrows," dull whitish, the feathers
with blackish shafts; face, dingy ochraceous or
dull tawny, passing into dull whitish around
eyes; a crescentic mark of black bordering upper
eyelid and confluent with black of ear-tufts;
facial circle, black, except across throat; a
conspicuous, crescentic area of immaculate white
across foreneck, the feathers white to extreme
base; rest of under parts with white
predominating, but tawny or ochraceous prevalent
on sides of breast and showing as the base color
wherever the feathers are disarranged; sides of
chest, breast, and abdomen, sides,&bull and
flanks, with numerous sharply defined transverse
bars of brownish black, these narrower and less
sharp&bully defined on front, the center of
upper breast immaculate white, a series of large
spots or blotches of black on chest, below the
white collar; under tail-coverts with bars
farther apart than on other under parts; legs and
toes, dull tawny to pale buff, usually immaculate
or nearly so, more rarely flecked or spotted with
dusky; bill, dull slate-black or blackish-slate;
iris, bright lemonchrome yellow; bare portion of
toes, light brownish-gray or ashy; claws, horn
color, passing into black terminally. |
NEST:
Generally, in a deserted Hawk's, Crow's, Eagle's,
Osprey's, or Caracara's nest or (in some parts of
its range) in a cave, on a ledge, or in a hollow
tree; constructed of twigs, weed stalks, roots,
and feathers when in an old nest, or eggs
deposited on the bare ground amidst a collection
of old bones, skulls, fur, and feathers of
quadrupeds and birds. |
EGGS:
2 or 3, white. |
YOUNG:
Wings and tail as in adults; downy plumage of
head, neck, and body, ochraceous or buff,
relieved by detached, rather distant, bars of
black. |
|
Distribution:
Eastern North America from Ontario, Quebec, New
Brunswick, and Newfoundland south to the Gulf
coast and Florida, west to Wisconsin, eastern
Minnesota, Iowa, and eastern Texas. |
" Tiger of the Air " is the term which has
been applied to this great Owl, and fitly, too, it must
be admitted, for the big bird undeniably is courageous,
powerful, and bloodthirsty. That he is highly destructive
must also be conceded, for it has been demonstrated
beyond question of a doubt not only that he is bold,
persistent, and generally successful in his raids upon
domestic poultry of all kinds, but that he is highly
skillful and deadly in his pursuit of game birds, song
birds, rabbits, and squirrels.
The tiger comparison applies well to the Owl's manner of
hunting,.for the sweep of his great wings in the silent
air is as noiseless as the tread of the big cat's padded
feet upon the soft earth. Through the woods and over the
meadows he glides as silently as a shadow, and to the
unwatchful rabbit or the slumbering Partridge that shadow
is the shadow of certain and sudden death. For such
creatures the Owl's lightning-like swoop, and the
murderous clutch of his great talons, are as pitiless and
as inescapable as the spring of the tiger upon the
helpless lamb.
To the poultry-farmer this Owl is a veritable terror;
for, once the bird has acquired a preference for a diet
of domesticated fowls, and has learned that they are
easier to capture than are the wild creatures, nothing
short of death is at all likely to deter him. For young
Turkeys he is likely to develop an especially strong
craving, and one instance is recorded of the loss by a
farmer of fifty-nine young Guinea-fowl, taken in a single
autumn by the same Owl. In such instances the bird is
likely to become fastidious to the extent that he will
devour only the brains of his prey, and leave the flesh
untouched. Of the mammals he has been known to kill even
the woodchuck, and he and other members of his family are
apparently the only rapacious birds who frequently dine
on the skunk, with the well-known results which, however,
evidently do not in the least trouble the Owl.
The bird's breeding habits are peculiar. In the general
latitude of Michigan the eggs are laid be.fore the first
of March, and many instances are recorded of their being
laid as early as the first week in February, or even in
the latter part of January, when the winter has been
unusually mild. It is by no means uncommon to find an Owl
stolidly incubating under a thick blanket of snow. Two
eggs are the normal complement, and there is evidence
that frequently they are laid with an interval of several
days between them, for often a nest is found to contain a
partly fledged bird and an unhatched egg. This
peculiarity has prompted the dubious inference that the
interval between the eggs is deliberately planned, so
that the later one may be protected by the fledgling when
the mother is away from the nest. It is much more
probable that the interval represents natural operations
which are imperfect, rather than designed.
"Dr. Louis Bennett Bishop and Mr. Herbert K. Job
have both noted an unusual habit of the parent birds in
apparently destroying the nest when the young become old
enough to balance themselves in the fork of the tree,
thus removing the conspicuous nest and leaving the bird
well protected by the harmony of its colors with the bark
of the tree." (Reported in Birds of Connecticut. )
The hooting cry of Owls is perhaps as famous as is the
note of any bird. In fact, it is so famous that
uninformed or careless listeners apply the term "
hoot owl" to any bird who has a hooting call. As a
result such persons often confuse two or more distinct
species, especially the Great Horned Owl and the Barred
Owl, though there is a marked difference between the
hoots of these two birds, that of the Great Horned being
much the stronger and more characteristic. This bird also
has a series of yelps, not unlike those of a dog, and a
catlike squall, to which may be due one of its popular
names, " Cat Owl," though the appearance of the
bird's head with its conspicuous ear-tufts is not unlike
that of a cat The "oot-too-hoo, hoo-hoo"
call, with the syllables variously divided and
differently accented is, however, the characteristic
utterance of this remarkable and interesting bird,
Sometimes, when heard at a distance, the audible notes,
two long ones followed by two short ones, strongly
suggest the warning which a locomotive engineer sounds
with his whistle when he approaches a crossing. Usually
the cry, like that of most Owls and of the night-birds
generally, has an uncanny and weird significance, in
which are blended distinct suggestions of threat,
defiance, and scorn, as befits the fearless and savage
nature of this veritable " tiger of the air."
The name of the genus to which the Great Horned Owl
belongs is Bubo, which is Latin for Eagle-Owl. This genus
has seven other representatives in North America. The
Western, or Pallid, Horned Owl (Bubo virginianus
pallescens) is similar to the Great Horned but
smaller and lighter. It is found in western North America
(exclusive of the high mountains) from eastern Oregon,
Montana, and Minnesota south to southeastern California,
Arizona, New Mexico, western Texas, and northeastern
Mexico.
The Pacific, or California, Horned Owl (Bubo
virginianus pacificus) is found in the interior of
California, north to south-central Oregon, and east to
San Francisco Mountain, western Arizona. It is slightly
smaller than the Western Horned Owl, generally darker,
the feet more heavily mottled with duslke swoop, and the
murderous clutch of his great talons, are as pitiless and
as inescapable as the spring of the tiger upon the
helpless lamb.
The Dwarf Horned Owl (Bubo virginianus elachistus)
occurs in southern Lower California; it is similar in
coloration to the Pacific Horned Owl but much smaller.
The Dusky Horned Owl (Bubo virgininianus saturatus)
is similar to the Pacific Horned Owl but much darker,
especially the upper parts; it is found from the interior
of Alaska south along the coast to south-central
California, and in the Rocky Mountains to Arizona and New
Mexico.
The Arctic Horned Owl (Bubo virginianus subarcticus
or Bubo virginianus wapacuthu) is paler than the
Western Horned Owl, the upper parts with much more of
white and less of black, &bull the under parts less
heavily barred, and the feet paler, usually immaculate
buff or buffy white.
It breeds from northwestern Mackenzie and central
Keewatin to the southwestern Saskatchewan; in winter it
travels southward to Ontario, Wisconsin, northeastern
Illinois, North Dakota, Montana, Idaho, and Colorado.
The Labrador Horned Owl (Bubo virginianus
heteroclnemis) is similar to the Dusky Horned Owl;
but: its bill is larger, its rear under parts lighter,
its feet paler and less heavily mottled, and its upper
parts usually with less of a tawny admixture. It occurs
on the coast of Labrador and Ungava; in winter it is
found in Newfoundland, Ontario, and Toronto. The Saint
Michael Horned Owl (Bubo virginianus algistus) is larger
than the Pacific Horned Owl and with the tawny parts
intensified in color. It is found in the coast region of
northern Alaska from Bristol Bay and the Yukon delta
northward.
As a result of his investigations of the habits of this
group of Owls, Dr. A. K. Fisher reports: "The large
and handsome Great Horned Owl is found throughout the
United States where suitable timber exists for its
habitation. It is a voracious bird, and its capacity for
good or evil is very great. If the more thickly settled
districts where poultry is extensively raised could be
passed by, and the bird considered only as it appears in
the great West, it would earn a secure place among the
beneficial species, for it is an important ally of the
ranchman in fighting the hordes of ground squirrels,
gophers, prairie dogs, rabbits, and other rodents which
infest his fields and ranges. Where mammals are plenty it
does not seem to attack poultry or game birds to any
considerable extent, but in regions where rabbits and
squirrels are scarce, it frequently makes inroads on
fowls, especially where they roost in trees. Undoubtedly
rabbits are its favorite food, though in some places the
c!7mmon rat is killed in great numbers; we have a record
of the remains of over one hundred rats that were found
under one nest.
The following is a list of the mammals taken from the
stomachs examined:
Three species of rabbits, cotton rat, two species of
pouched gophers, two species of wood rats, chipmunk, two
species of grasshopper mice, white-footed mouse, plateau
ground squirrel, Harris ground squirrel, musk rat, fox
squirrel, five species of meadow mice, one short-tailed
shrew, the house mouse, common rat, black bat, red-backed
mouse, flying squirrel, shrew, and kangaroo rat. Besides
mammals and birds, insects (such as grasshoppers and
beetles), scorpions, crawfish, and fish are also taken.
The Great Horned Owl does a vast amount of good, and, if
farmers would shut up their chickens at night instead of
allowing them to roost in trees and other exposed places,
the principal damage done by the bird would be
prevented."
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