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This species differs a good deal in form from P. iliaca. The claws are much larger and stouter, the wing a good deal shorter and more rounded. The differences in color are very appreciable, the tints being dark sepia-brown instead of red, and perfectly uniform above, not spotted; the under parts much more thickly spotted.
Specimens from Alaska show a tendency to longer and perhaps more slender bills. Some are rather more rufous-brown than the type; others have a faint tinge of ashy anteriorly, although scarcely appreciable. This is especially noticeable in some skins from Fort Tejon, they being almost exactly intermediate between townsendi and schistacea, or megarhynchus.
Young birds are not materially different from the adult, except in having the white of under parts replaced by pale rusty; the back is rather duller in color, but without spots or stripes of any kind.
No. 46,620 from British Columbia has the bill much stouter than in the average.
It is by no means certain, however probable, that this bird is the E. unalaschkensis of Gmelin, an important objection being its absence so far in collections received by the Smithsonian Institution from that island. We therefore leave the question open for the present.
Habits. The history of this western analogue of the Fox-colored Sparrow is still quite imperfectly known. It was first obtained in Oregon by Mr. Townsend, on the 15th of February. He describes it as a very active and a very shy bird, keeping constantly among the low bushes of wormwood, and on the ground in their vicinity. It was partially gregarious, six or eight being usually seen together. Its call-note was a short, sharp, quick chirp, and it also had occasionally a low weak warble.
Dr. Gambel, referring probably to its occurrence in winter in California, speaks of this bird as an abundant resident in that State, which is not correct, it being only a winter visitant, and not abundant south of San Francisco. He describes its habits as very different from those of any other Sparrow, and more like those of a Thrush. It is said to keep in retired bushy places, or in underwood, and was scarcely ever seen except on the ground, and then would scarcely ever be discovered but for the noise it made in scratching among the leaves. It was silent and unsuspicious, and he rarely heard it utter even its occasional chirp.
Dr. Cooper states that he found this Sparrow only a winter resident in Washington Territory, where, in company with other Sparrows, it kept constantly on the ground, frequenting the thickets and scratching among the fallen leaves for its food. It was most common in the interior, but in very cold weather sought the coast, in company with the Snowbird and other species. He observed a few lingering about the Straits of Fuca until April. After that he saw no more of them until their return southward in October. During their winter residence Dr. Cooper never heard them sing. Dr. Suckley found them rather abundant near Fort Steilacoom, though not so common as the Melospiza rufina, which they greatly resembled in habits and in general appearance.
Dr. Heermann describes them as abundant and migratory in California, visiting that State only in winter. He speaks of them as of a solitary and quiet nature, resorting to the thickets and underwood for its food, turning over the leaves and scratching up the ground in the manner of the Brown Thrush, occasionally hopping backwards as if to ascertain the results of its labors.
Dr. Cooper, in his Report on the Birds of California, reaffirms that this bird is only a winter visitant to the lower country near the Columbia, but also conjectures that it spends the summer in the Cascade Mountains, between April and October. Specimens have been obtained near San Francisco in winter. It seemed to him to be both a shy and a silent bird, frequenting only woods or thick bushes, and while there constantly scratching among the fallen leaves, and feeding both on seeds and insects. He has seen either this bird or the P. megarhynchus as far south as San Diego in winter. He has also noticed its arrival near San Francisco as early as October 20.
On the Spokan Plains, in British Columbia, Mr. J. K. Lord first met with this species. They were there not uncommon in dark swampy places east of the Cascades. These birds he found remarkable for their singular habit of scratching dead leaves or decayed material of any sort with their feet, exactly as do barn-door fowls,—sending the dirt right, left, and behind. It picks up seeds, insects, larvæ, or anything eatable that it thus digs out, and then proceeds to scratch for more. The long and unusually strong claws with which this bird is provided seem particularly well adapted for these habits, so unusual in a Sparrow. At almost any time, by waiting a few moments, one may be pretty sure to hear the scratching of several of these birds from under the tangle of fallen timber.
Several specimens were obtained in Sitka by Bischoff and others, but without any record of their habits.
Passerella schistacea, Baird, Birds N. Am. 1858, 490, pl. lxix, f. 3.
11234 ♂
Sp. Char. Bill slender, the length being .34 from nostril, the depth .25; the upper mandible much swollen at the base; the under yellow. Above and on the sides uniform slate-gray; the upper surface of wings, tail-feathers, and upper coverts dark brownish-rufous; ear-coverts streaked with white. Beneath pure white, with broad triangular arrow-shaped and well-defined spots of slate-gray like the back everywhere, except along the middle of the belly; not numerous on the throat. A hoary spot at the base of the bill above the loral region; axillars nearly white. Length, 6.80; wing, 3.30; tail, 3.50.
Hab. Head-waters of Platte and middle region of United States to Fort Tejon and to Fort Crook, California.
This species is readily distinguished from P. iliaca by the slaty back and spots on the breast, the absence of streaks above, and the longer claws. From townsendi it differs in having the head, back, sides, and spots beneath slate-colored, instead of dark reddish-brown. The spotting beneath is much more sparse, the spots smaller, more triangular, and confined to the terminal portion of the feathers, instead of frequently involving the entire outer edge. The axillars are paler. The wings and tail are the same in both species.
The young bird is quite similar; but the spots beneath are badly defined, more numerous, and longitudinal rather than triangular.
There can be little doubt, however, that this bird is a geographical race of P. townsendi.
Habits. For all that we know in regard to the habits and general distribution of this species, we are indebted to the observations of Mr. Ridgway, who met with it while accompanying Mr. Clarence King’s geological survey. It was first obtained in July, 1856, by Lieutenant F. T. Bryan, on the Platte River, and others were afterwards collected at Fort Tejon by Mr. Xantus.
Mr. Ridgway found the Slate-colored Sparrow at Carson City, during its spring migrations northward, in the early part of March. At this time it was seen only among the willows along the Carson River, and was by no means common. It had the habit of scratching among the dead leaves, on the ground in the thickets, precisely after the manner of the eastern P. iliaca. In the following September he again found it among the thickets in the Upper Humboldt Valley. In Parley’s Park, among the Wahsatch Mountains, he found it a very plentiful species in June, nesting among the willows and other shrubbery along the streams. There it was always found in company with the M. fallax, which in song it greatly resembles, though its other notes are quite distinct, the ordinary one being a sharp chuck. The nest of the two species, he adds, were also so much alike in manner of construction and situation, and the eggs so similar, that it required a careful observation to identify a nest when one was found.
The eggs from one nest of the Passerella schistacea measure .90 by .70 of an inch, have a ground of a light mountain-green, and are profusely
