SAGE-COCK; COCK OF THE PLAINS.

_Tetrao urophasianus_, BONAP. Zool. Jour. III, Jan. 1828, 214.—IB.

Am. Orn. III, 1830, pl. xxi, f. 1.—IB. Mon. _Tetrao_, in Trans. Am.

Phil. Soc. N. S. III, 1830, 390.—DOUGLAS, Trans. Linn. Soc. XVI, 1829,

133.—NUTTALL, Man. I, 1832, 666.—AUD. Orn. Biog. IV, 1838, 503, pl.

ccclxxi.—IB. Birds Amer. V, 1842, 106, pl. ccxcvii.—NEWBERRY, Zoöl.

Cal. & Or. Route, Rep. P. R. R. Surv. VI, iv, 1857, 95.—MAX. Cab.

J. VI, 1858, 431.—WILSON, Illust. 1831, pl. xxvi, xxvii. _Tetrao

(Centrocercus) urophasianus_, SW. F. Bor. Am. II, 1831, 358, pl.

lviii.—GRAY, Cat. B. Brit. Mus. III, 46, 1844.—BAIRD, Birds N. Am.

1858, 624.—COOP. & SUCKL. 222.—JARD. Game Birds, Nat. Lib. IV, 140,

pl. xvii.—ELLIOT, P. A. N. S, 1864.—IB. Monog. Tetraon. pl.—GRAY,

Cat. Brit. Mus. V, 1867, 87.—COOP. & SUCK. 222.—COOP. Orn. Cal. I,

1870, 536. _Centrocercus urophasianus_, JARDINE, Game Birds, Nat. Lib.

Birds, IV, 140, pl. xvii. _?? Tetrao phasianellus_, ORD, Guthrie’s

Geog. (2d Am. ed.) II, 1815, 317, based on Lewis & Clark, II, 181.

_Cock of the Plains_, LEWIS & CLARK, II, 180, sp. 2.

SP. CHAR. Tail-feathers twenty. Above varied with black, grayish-brown,

and brownish-yellow; coverts having all the feathers streaked with the

latter. Beneath black; the breast white; the upper feathers with spiny

shafts; the lower streaked with black; tail-coverts with white tips;

the sides also with much white. _Male._ Length, 33.00; wing, 13.00;

tail, 13.00. _Female._ Length, 21.50; wing, 10.75; tail, 7.50. _Chick._

Upper surface brownish-gray, lower grayish-white. Above irregularly and

coarsely marbled with black, the markings most conspicuous on the head.

Bill black.

HAB. _Artemisia_, or sage, plains of the Northwest.

HABITS. The Cock of the Plains appears to be confined to dry and sterile

regions, from the Black Hills to California and Oregon, and from British

Columbia nearly to Arizona, but only in those portions of the plains in

which the _Artemisia_, or sage, abounds. It was met with by Townsend

for the first time about fifty miles west of the Black Hills. He did

not find them in the valley of the Snake River, but saw them again at

Wallah-Wallah, on the banks of the Columbia, and near the mouth of the

Lewis River. He only found it on the plains that produce the wormwood,

on which plant it feeds, and in consequence of which the flesh becomes

so bitter that it is unfit for food. It was very unsuspicious and easily

approached, rarely flying unless hard pressed, and running ahead at the

distance of a few feet, clucking like the common Hen. When disturbed,

it would often run under the horse’s feet. According to his account it

rises very clumsily, but, when once started, flies with great rapidity

and also to a great distance. It is said to have the sailing motion of

the Pinnated Grouse. They are abundant in autumn on the branches of the

Columbia, at which time they are regarded as good food by the natives,

and are taken in great quantities in nets.

Mr. Nuttall met with this Grouse in considerable numbers on the north

branch of the Platte. They were always on the ground in small flocks

or pairs, by no means shy; but when too nearly approached, uttering a

rather loud but short guttural cackle, and rising with a strong whirring

sound. Their notes, at times, strongly resembled those of the common

Hen. He never met with them in any forest, nor have they been taken near

the coast of California.

[Illustration: =2561= ♂ ⅓ ⅓

_Centrocercus urophasianus._]

This species was first obtained by Lewis and Clark’s party in their

expedition to the Rocky Mountains. It was afterwards met with by

Douglas, who published in the Linnæan Transactions (XVI, p. 133) an

account of its habits. He described its flight as slow, unsteady, and

as affording but little amusement to the sportsman; being a succession

of flutterings, rather than anything else. They rise hurriedly, giving

two or three flaps of the wing, swinging from side to side in their

movement, and gradually falling, making a whirring sound, at the same

time uttering a cry of _cuck-cuck-cuck_, like the common Pheasant. They

pair in March and April.

At the mating-season the male is said to select some small eminence

on the banks of streams for the very singular performances it goes

through with at that period in the presence of its mate. The wings are

lowered and dragged on the ground, making a buzzing sound; the tail,

somewhat erect, is spread like a fan; the bare and yellow œsophagus

is inflated to a prodigious size, and said to become nearly half as

large as its body, while the silky flexile feathers on the neck are

erected. Assuming this grotesque form, the bird proceeds to display a

singular variety of attitudes, at the same time chanting a love-song

in a confused and grating, but not an offensively disagreeable tone,

represented as resembling _hurr-hurr-hurr-r-r-r-hoo_, ending in a deep

and hollow utterance.

[Illustration: _Centrocercus urophasianus._]

Their nests were found, by Douglas, on the ground, under the shade of

_Artemisia_, or when near streams, among _Phalaris arundinacea_, and

were carefully constructed of dry grass and slender twigs. The eggs are

said to be as many as from thirteen to seventeen in number, and the

period of incubation to be twenty-one or twenty-two days. The young

leave the nest soon after they are hatched.

In the winter these birds are said to be found in large flocks of

several hundreds, in the spring in pairs, and later in the summer and

fall in small family groups. They were abundant throughout the barren

amid plains of the Columbia and in Northern California, but were not met

with east of the Rocky Mountains.

Dr. Newberry regards this Grouse, when in full plumage, as rather a

handsome bird, and much better looking than any figure he has seen

of it. It is much the largest of American Grouse, weighing from five

to six pounds. The female is much smaller than the male, and is of a

uniform sober-brown color. The male bird has a distinctive character in

the spaces of bare orange-colored skin which occupy the sides of the

neck, and are usually concealed by the feathers, but may be inflated to

a great size. The species was not found in the valleys of California,

but belongs both to the fauna of the interior basin and to that of the

Rocky Mountains, the dry desert country lying on both flanks of this

chain. He first found it high up on Pit River, and once came suddenly

upon a male in an oasis near a warm spring, which started up with a

great flutter and rush, and, uttering a hoarse _hek-hek_, flew off with

an irregular but remarkably well-sustained flight, which was continued

until the bird was out of sight. In searching around he soon found its

mate, which rose from under a sage-bush with a noise like a whirlwind.

This specimen was secured, and these birds were afterwards found to be

quite abundant, but very strong-winged and difficult to kill. It was no

uncommon thing, Dr. Kennerly states, for him to pour a full charge of

shot into them at a short distance, dislodging a quantity of feathers,

and yet to have them fly off to so great a distance before they dropped

that he could not follow them. He found them only in the vicinity of

the sage-bushes, under which they were usually concealed. He afterwards

saw them very abundant on the shores of Wright and Rhett Lakes. In one

instance he observed a male bird to sink down on the ground, as the

train approached, depressing its head, and lying as motionless as a

stick, which it greatly resembled. As he moved towards it, the bird

lowered its head until it rested on the ground, and made itself as

small as possible, and did not rise until he had arrived within fifteen

feet of it. West of the Cascade Range it did not occur, and all its

preferences and habits seemed to fit it for the occupancy of the sterile

region of the central desert. Its flesh is dark and highly flavored with

the wormwood. The young, if parboiled and stewed, are said to be quite

good; but, on the whole, this Grouse is inferior for the table to any

other American species.

Dr. Cooper gives this bird as common in Washington Territory, on the

high barren hills and deserts east of the Cascade Mountains, and limited

in its range by the growth of the _Artemisia tridentata_, the leaves of

which shrub seem to be the principal part of its food; the flesh tasting

so strongly of it as to be unpalatable. He saw none north of the Spokane

Plains, the country being apparently too woody. On those plains they

were very common. He describes its flight as more heavy and less noisy

than that of most Grouse, and when they are started, it commonly extends

a long distance before alighting.

Dr. Suckley found the Sage-Cock abundant on the plains of Oregon, near

Snake River, on both sides of the Blue Mountains, as also along the line

of the Columbia, on the open plains, and on the sage barrens of the

Yakima and Simcoe Valleys,—in fact, wherever the artemisia was found.

The leaves of this shrub either are preferred or are necessary to its

existence, for no other food was found in their full stomachs, even in

localities where abundance of grass-seed, wild grain, grasshoppers, and

other kinds of food, might be found. This species has apparently the

power of going a long while without water. Lieutenant Fleming informed

Dr. Suckley that he found them about twelve miles west of Fort Laramie,

but they were not seen east of that point so far south. In August, 1853,

one was procured about two hundred miles east of the Rocky Mountains. He

also observed a small flock on the plains bordering on Milk River, in

Nebraska. Near Soda Lake, the sink of the Mohave River, Dr. Cooper met

with it, which is without doubt the most southern point at which it has

been discovered. Dr. Coues has never met with it in Arizona.

Mr. Ridgway encountered it everywhere in the Great Basin where there

was a thrifty growth of the artemisia, which appears everywhere to

regulate its existence. He corroborates the accounts given of its

heavy, lumbering flight; and when it has once escaped, it flies so

far that the sportsman rarely has a second opportunity to flush it.

It rises apparently with great effort. He was told by the settlers of

Nevada and Utah that the Sage-Hen was never known to touch grain of

any kind, even when found in the vicinity of grain-fields. This is

attributed to a very curious anatomical peculiarity of the species,—the

entire absence of a gizzard; having instead a soft membranous stomach,

rendering it impossible to digest any hard food. In a large number of

specimens dissected, nothing was found but grasshoppers and leaves of

the artemisia.

Two eggs in my cabinet, from Utah, measure, one 2.20 by 1.50 inches, and

the other 2.15 by 1.45. They are of an elongate-oval shape, slightly

pointed at one end. Their ground-color varies from a light-greenish drab

to a drab shaded with buff. They are thickly freckled with small rounded

spots of reddish-brown and dark chestnut.

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