SCALED OR BLUE PARTRIDGE.

_Ortyx squamatus_, VIGORS, Zoöl. Journ. V, 1830, 275.—ABERT, Pr.

A. N. Sc. III, 1847, 221. _Callipepla squamata_, GRAY, Gen. III,

1846, 514.—M’CALL, Pr. A. N. Sc. V, 1851, 222.—CASSIN, Ill. I, v,

1854, 129; pl. xix.—GOULD, Mon. Odont. pl. xix.—BAIRD, Birds N. Am.

1858, 646.—IB. Mex. B. II, Birds, 23.—GRAY, Cat. Brit. Mus. V, 1867,

78.—HEERM. X, _C_, 19.—COOP. Orn. Cal. I, 1870, 556. _Callipepla

strenua_, WAGLER, Isis, XXV, 1832, 278. _Tetrao cristata_, DE LA

LLAVE, Registro trimestre, I, 1832, 144.

SP. CHAR. Head with a full, broad, flattened crest of soft elongated

feathers. Prevailing color plumbeous-gray, with a fine bluish cast on

jugulum and nape, whitish on the belly, the central portion of which is

more or less tinged with brownish; sometimes a conspicuous abdominal

patch of dark rusty, the exposed surface of the wings tinged with light

yellowish-brown, and very finely and almost imperceptibly mottled. Head

and throat without markings, light grayish-plumbeous; throat tinged

with yellowish-brown. Feathers of neck, upper part of back, and under

parts generally, except on the sides and behind, with a narrow but

well-defined margin of blackish, producing the effect of imbricated

scales. Feathers on the sides streaked centrally with white. Inner edge

of inner tertials, and tips of long feathers of the crest, whitish.

Crissum rusty-white, streaked with rusty. Female similar. Length, 9.50;

wing, 4.80; tail, 4.10.

HAB. Table-lands of Mexico and valley of Rio Grande of Texas. Most

abundant on the high broken table-lands and mesquite plains.

[Illustration: =9386= ♂

_Callipepla squamata._]

HABITS. This bird was first described as a Mexican species in 1830 by

Mr. Vigors. For a long while it has been an extremely rare species in

collections, and its history, habits, and distribution remained unknown

until the explorations of the naturalists made in the surveys under

the direction of the national government. It was first noticed within

the territory of the United States by Lieutenant Abert, Topographical

Engineer, who, in his Report of the examination of New Mexico, furnishes

several notes in relation to this species. In November, 1846, he

mentions that, after having passed through Las Casas, while descending

through a crooked ravine strewed with fragments of rocks, he saw

several flocks of this species. They were running along with great

velocity among the clumps of the kreosote plant. At the report of the

gun only three or four rose up, the rest seeming to depend chiefly on

their fleetness of foot. Their stomachs were found to be filled with

grass-seeds and hemipterous insects.

[Illustration: _Callipepla squamata._]

Captain S. G. French, in notes quoted by Mr. Cassin, mentions meeting

with these birds, in the same year, near Camargo, on the Rio Grande.

At Monterey none were seen; but on the plains of Agua Nueva, a few

miles south of Saltillo, they were observed in considerable numbers. He

afterwards met with them on the Upper Rio Grande, in the vicinity of El

Paso. Though found in the same section of country with Gambel’s Quail,

they were not observed to associate together in the same flock. Their

favorite resorts were sandy chaparral and mesquite bushes. Through these

they ran with great swiftness, resorting only, when greatly alarmed by

a sudden approach, to their wings. They were very shy, and were seldom

found near habitations, though once a large covey ran through his camp

in the suburbs of El Paso.

Colonel McCall (Proc. Phil. Ac. V, p. 222) mentions meeting with this

species throughout an extended region, from Camargo, on the Lower Rio

Grande, to Santa Fé. They were most numerous between the latter place

and Doña Ana, preferring the vicinity of watercourses to interior

tracts. They were wild, exceedingly watchful, and swift of foot, eluding

pursuit with surprising skill, scarcely ever resorting to flight even on

the open sandy ground. For the table they are said to possess, in a high

degree, the requisites of plump muscle and delicate flavor.

In a subsequent sketch of this species, quoted by Mr. Cassin, the same

writer gives as the habitat the entire valley of the Rio Grande,—a

territory of great extent from north to south, and embracing in its

stretch between the Rocky Mountains and the Gulf of Mexico every variety

of climate. This entire region, not excepting even the mountain valleys

covered in winter with deep snow, is inhabited by it. It was found by

him from the 25th to the 38th degree of north latitude, or from below

Monterey, in Mexico, along the borders of the San Juan River, as high up

as the Taos and other northern branches of the Rio Grande. He also found

it near the head of the Riado Creek, which rises in the Rocky Mountains

and runs eastwardly to the Canadian.

Wherever found, they are always resident, proving their ability to

endure great extremes of heat and cold. In swiftness of foot, no species

of this family can compete with them. When running, they hold their

heads high and keep the body erect, and seem to skim over the surface of

the ground, their white plume erected and spread out like a fan.

On the Mexican side of the Rio Grande this species is found farther

south than on the western bank, owing to the rugged character of the

country. In Texas its extreme southern point is a little above Reinosa,

on the first highlands on the bank.

Don Pablo de la Llave, a Mexican naturalist, states, in an account of

this species (Registro Trimestre, I, p. 144, Mexico, 1832), that he

attempted its domestication in vain. In confinement it was very timid,

all its movements were rapid, and, although he fed his specimens for a

long time each day, they seemed to become more wild and intractable. It

was found by him in all the mesquite regions of Northern Mexico.

Specimens of this Partridge were taken near San Pedro, Texas, by Mr.

J. H. Clark, and in New Leon, Mexico, by Lieutenant Couch. According to

Mr. Clark, they are not found on the grassy prairies near the coast.

He met with them on Devil’s River, in Texas, where his attention was

at first directed to them by their very peculiar note, which, when

first heard, suggested to him the cry of some species of squirrel. In

the valley of the Lower Rio Grande he also met with these birds in

companies of a dozen or more. Their food, on the prairies, appeared

to be entirely insectivorous; while on the Lower Rio Grande all the

specimens that were procured had their bills stained with the berries

of the opuntia. They were not shy, and would rather get out of the way

by running than by flying. At no time, and under no circumstances, were

they known to alight in bushes or in trees. They were only known to make

mere scratches in the ground for nests, and their situations were very

carelessly selected. Young birds were found in June and in July.

Lieutenant Couch first met with this species about sixty leagues west of

Matamoras, and not until free from the prairies and bottom-land. It was

occasionally noticed, apparently associating with the _Ortyx texana_, to

which it is very similar in habit.

Dr. Kennerly found them everywhere where there was a permanent supply of

fresh water, from Limpia Creek, in Texas, to San Bernardino, in Sonora.

They were met with on the mountain-sides, or on the hills among the

low mesquite-bushes and barrea. They apparently rely more upon their

legs than upon their wings, ascending the most precipitous cliffs or

disappearing among the bushes with great rapidity.

The most western point at which Dr. Heermann observed this species was

the San Pedro River, a branch of the Gila, east of Tucson. There a flock

of these birds ran before him at a quick pace, with outstretched necks,

heads elevated, crests erect and expanded, and soon disappeared among

the thick bushes that surrounded them on all sides. After that they

were seen occasionally until they arrived at Lympia Springs. Lieutenant

Barton informed Dr. Heermann that he had procured this species near Fort

Clark, one hundred and twenty miles west of San Antonio, where, however,

it was quite rare. It was found abundantly on the open plains, often

starting up before the party when passing over the most arid portions

of the route. They also seemed partial to the prairie-dog villages.

These, covering large tracts of ground destitute of vegetation, probably

offered the attraction of some favorite insect.

Dr. Woodhouse met with this species on only one occasion, as the party

was passing up the Rio Grande, at the upper end of Valleverde, on the

west side of the river, on the edge of the sand-hills, feeding among the

low bushes. They were exceedingly shy and quick-footed. He tried in vain

to make them fly, and they evidently preferred their feet to their wings

as a means of escape. He was told that they were found above Santa Fé.

Mr. Dresser found this species on the Rio Grande above Roma, and between

the Rio Grande and the Nueces they were quite abundant; wherever found,

they seemed to have the country to themselves to the exclusion of other

species. He reports them as very difficult to shoot, for the reason

that, whenever a bevy is disturbed, the birds scatter, and, running with

outstretched necks and erected crests, dodge through the bushes like

rabbits, so as soon to be out of reach. He has thus seen a flock of ten

or fifteen disappear so entirely as to render it impossible to obtain a

single one. If left undisturbed, they commence their call-note, which

is not unlike the chirp of a chicken, and soon reunite. It was utterly

out of the question to get them to rise, and the only way to procure

specimens was to shoot them on the ground. Near the small villages in

Mexico he found them very tame; and at Presidio, on the Rio Grande, he

noticed them in a corral, feeding with some poultry. He did not meet

with their eggs, but they were described to him, by the Mexicans, as

dull white, with minute reddish spots.

The egg of the _Callipepla squamata_ is regularly oval, being much more

elongated than with any other species of this family. It measures 1.35

inches in length by .95 in breadth. Its ground-color is a creamy white,

and its surface is minutely freckled with specks of a pale drab.

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