Habits. The Brown, or Cañon Finch of California is found nearly throughout the State of California. Mr. Xantus obtained it at Fort Tejon, and Mr. Ridgway observed it among the chaparrals on the foothills of the western slope of the Sierras.
Dr. Cooper considers the name of Cañon Finch ill applied to this species, as it is equally plentiful in level districts, wherever trees and shrubbery exist. He regards it as one of the most abundant and characteristic birds of California, residing in all the lower country west of the Sierras, and extending up the slopes of the Coast Range to the height of three thousand feet. They are said to have habits very similar to those of all the other species, living much upon the ground, and seeking their food among the dead leaves, which they greatly resemble in color. This resemblance Dr. Cooper regards as a great protection to them from Hawks; their hues also correspond with those of the earth and the dusky foliage during most of the year. They are thus less conspicuous in the light, and they venture more fearlessly forth and feed in open grounds.
They have but little song, and only utter a few faint chirps and hurried notes, as they sit perched upon some low bush, in the spring. At San Diego Dr. Cooper saw the first nest with eggs on April 17, but some birds had laid much earlier, as he found young hatched by the 20th. He afterwards observed other nests, all of which were built in bushes, from two to four feet from the ground, and all but one contained three eggs; the other had four. He has found them built in low trees, and one in a vine growing over the porch of a house. The nest is formed of coarse twigs, bark, and grass, is thick and large, and is lined with fine root-fibres and finer grasses. The eggs are pale blue, spotted with purplish-brown blotches, mostly small and scattered. He gives the measurement of the eggs as .90 by .65 of an inch. In the more northern part of the State they are said to lay four eggs oftener than three. They are supposed by him to have two broods in a season.
Colonel McCall has no doubt that they are found throughout California, as he has met with them from the upper waters of the Sacramento to the mouth of the Gila; the former having its origin in the extreme north, and the latter touching the extreme southern boundary of the State. It is most abundant south of Santa Barbara.
Colonel McCall states that its habits and manners differ somewhat from those of the common Towhee and the Arctic Finches. Its flight is more even and regular, and is without that violent jerking of the tail from side to side, which gives such a singular appearance of awkwardness to the movements of the Towhee. It is less shy and suspicious than the Arctic. It is also much less decidedly a Ground Finch than either of the others. Its favorite abode he found to be the vicinity of watercourses, where it is generally to be seen in pairs, though he has, at times, surprised eight or ten together under the shade of a large bush at noon in a summer day, when he has had no difficulty in procuring three or four specimens before the party dispersed. It is at all times a familiar bird, boldly coming into the roads to feed, and permitting a close approach. If compelled to retreat, it darts suddenly into the thicket, but returns as soon as the cause of alarm has disappeared. Near Santa Barbara he found thirty or forty of these birds, in the month of July, dispersed over an old field of some five acres in extent, contiguous to a sea-beach, through which flowed a small stream of fresh water. They were feeding on the ground, sheltered by a rank growth of weeds. When one was flushed it flew into a neighboring tree instead of seeking shelter again in the weeds. The young at that time were fully fledged, and scarcely differed in the color of their plumage from the adults.
Dr. Heermann once met with a nest of this bird built in a grapevine overhanging the Sacramento River. He describes the eggs of this species as differing entirely from any of this genus he had ever met with, and as having so great a resemblance to the eggs of the three different species of Blackbirds inhabiting California that they were liable to be confounded with them unless marked when taken from the nest.
Dr. Newberry, who found this bird very common in the Sacramento Valley, states that when he first met with it, a strange bird to him, its habit of scratching among the dry leaves under the bushes, as well as its long tail and jerking flight from one clump of bushes to another, at once indicated to him its affinities.
Among the memoranda made by Mr. Xantus at Fort Tejon are the following in reference to this species: “474, nest and two eggs, found May 19 on a small thorn-bush in a very dark thicket, about six feet from the ground; 1,675, nest and one egg, on a thick thorny bush, six feet from the ground; 1,851, nest and two eggs, May 12, on a rose-bush, four feet from the ground, eggs already incubated.”
The eggs of this species measure one inch by .75, have a light ground of robin-blue, and are spotted and blotched with varying shades of dark and light purple. In some the color of the blotches is so deep as not to be distinguishable from black, except in a strong light. The lighter shades are a faint lavender.
Pipilo mesoleucus, Baird, Pr. A. N. Sc. Ph. VII, June, 1854, 119 (Rocky Mountains).—Ib. Birds N. Am. 1858, 518, pl. xxix.—Kennerly, P. R. R. X, b pl. xxix.—Heerm. X, c. p. 15.—Cooper, Orn. Cal. 1, 247. ? Pipilo fusca, “Swains.,” Sclater & Salvin, P. Z. S. 1869, 361 (city of Mexico).
Sp. Char. Above very dull olivaceous-brown, with a grayish tinge; hood dull chestnut, conspicuously different from the back. Sides like the back, but paler; posteriorly, and about the vent and under tail-coverts, pale brownish-red. The ashy olive-brown of the sides scarcely meeting across the breast, the lower portion of which, with the upper belly, is rather pure white. The loral region, chin, throat, and upper part of the breast, pale yellowish-rufous, finely spotted on the sides and more coarsely across the breast with brown; an obscure spot in the middle of the breast; edge of outer primary white. Bill pale brown; legs flesh-color; first quill about equal to eighth, third and fourth longest. Length, 8.50 inches; wing, 3.80; tail, 4.70.
Hab. Valley of Upper Rio Grande and across to the Gila River. East to Santa Caterina, New Leon.
This race is similar in general appearance to P. crissalis, but the olive-brown and rufous are both of a lighter shade. The crown is of a decided rufous, conspicuously different from the back, instead of nearly the same tint. The light reddish under the head is wider throughout, and extends down to the upper part of the breast, blending with the colors of the breast and belly, instead of being narrower, more sharply defined, and restricted to the chin and throat; it is palest anteriorly, the chin and lore being almost white. The isolated larger spot on the breast is more conspicuous; the breast and belly are quite pure white, shaded with obsolete brownish blotches, instead of being uniform grayish-brown, with only an approach to whitish in the very middle. The edges of the wing and tail feathers are a good deal lighter, the outer web of the first primary being sharply edged with pure white, instead of obscure grayish-brown. The size generally is rather smaller, the wings more pointed.
Compared with P. fuscus, we find the tail decidedly longer; the wing more pointed; the first quill about equal to the eighth, instead of shorter than the secondaries. The colors generally are paler; the cap of head bright distinct rufous in strong contrast with the other plumage, instead of being only very obscurely tinged with that color. The white of belly is purer, and extends farther forward, displacing the ashy tinge almost to the buff of the throat.
If we consider all the brown Pipilos as modifications of one primitive species, it will be well to consider the Arizonan and New Mexican bird as the central figure around which the others are grouped. The common character will then be varied in the California race, crissalis, by the absence of decided rufous on crown, a darker shade of color, and an extension of the gray of sides over the whole under parts, almost entirely displacing the white. The wing is more rounded, and the general dimensions larger southward on the central plains of Mexico; the general tints are almost precisely as in the California bird, except that the white of belly is very evident; but the chestnut cap and extended whiteness of belly, together with the pointed wing of mesoleucus, are wanting. In P. albigula of Cape St. Lucas we have the general characters of mesoleucus, with paler colors, more restricted spots encircling throat, and a tendency to white in its lower part. In this it approaches albicollis of Southwestern Mexico.
Habits.