In the early part of July, near Austin, in the cañons of the mountains, he found these birds breeding in the greatest abundance, and later in the same month a few of its nests were found on the East Humboldt Mountains. All of its nests, with hardly an exception, were placed from eighteen inches to two feet above the ground, among the thick bushes of a species of Symphoricarpus, or “snow-berry,” which grows in great abundance upon the sides of the cañons of those mountains. The maximum number of eggs was four. It was also quite a common bird in the Wahsatch Mountains, though less abundant than the P. megalonyx.
Mr. Allen found this Finch quite numerous in Colorado Territory, and speaks of its song as very peculiar and very pleasing. It is said to resemble in no respect the eastern Towhee Finch, with which it is classed, but much more closely the group of Sparrows, so familiarly represented at the east by the White-throated, being like them in habits, song, and general aspect. It was more common among the foot-hills than on the plains. In Utah, according to Mr. Allen, this Finch begins to appear in numbers about September 20, from its breeding-haunts in the mountains.
Dr. Coues met with this species in Arizona, but only as a spring and autumn migrant. None remained there in summer to breed, and none were found there in the winter. In its migrations it passed rapidly by Fort Whipple, being found there only during the latter part of April and the beginning of May, and during the month of September. At those seasons it appeared to him the most silent and retiring of all the Pipilos. He found it very difficult to either observe its habits or to capture it. It winters sparingly at Fort Mohave.
Specimens of this bird were taken near Lookout Mountain by C. S. McCarthy, and at Gilmer, in Wyoming Territory, by Mr. Durkee.
Dr. Heermann, in his Report on the birds observed on the 32d. parallel, under Lieutenant Parke, mentions first meeting with this species near Tucson. They were frequenting, in numbers, the thick undergrowth, and were seeking seeds and insects on the ground. They seemed inclined to shun observation, and always kept in the most retired situations. They were sociable among themselves, going about singly or in pairs, associated with the Poospiza bilineata and two or three other kinds of Finch. When started they fly low, diving into the bushes, and soon disappear from sight. Occasionally, until reaching El Paso, Texas, birds of this species were met with, mingling with the flocks of migrating Fringillidæ. He there procured a pair apparently just entering upon incubation.
Instead of being suited by color, like most of the other Pipilos, to inhabit dark thickets and among dry leaves, this species is clad in a gayer livery, and seems well adapted for concealment in its summer resorts, and also among the growing vegetation of the lower country during the rainy season. Dr. Heermann found a few wintering in the Colorado Valley, and yet more at San Diego, but they left both places in March. He found them silent and shy, hiding very closely in the bushes, and feeding altogether on the ground. The only note he heard, resembled the crowing note of the California Quail.
Among the memoranda of Mr. Xantus, made near Fort Tejon, are the two following: “4,839, nest and two eggs (of Pipilo chlorurus) found in a dry hedge in Mr. Ritchie’s garden; 5,083, nest and eggs found in a dark garden-hedge.”
The eggs of the chlorurus are like those of no other Pipilo that I have met with. They are peculiar in shape, being nearly of an exact oval, neither end being apparently much more rounded than the other. Their ground-color is white with a bluish tint, over which is profusely diffused a cloud of fine dottings of a pinkish-drab. These markings are occasionally so fine and so thickly distributed as to give to the egg the appearance of a uniform color, or as an unspotted pinkish drab-colored egg. Occasionally the dots are deeper and larger, and more sparsely diffused.
In considering the eggs of the Pipilos in general we find certain variations which deserve more than a passing notice. Those of erythrophthalmus, oregonus, arcticus, and megalonyx are all fringilline in their characters, and have a marked affinity to eggs of Melospiza, Zonotrichia, and many other genera of this order. The eggs of aberti, fuscus, mesoleucus, and albigula are also all closely alike, and exhibit a very close resemblance to those of the Agelaii, and even of the Icteri, while the eggs of P. chlorurus, though of a fringilline character, are unlike either style.
Family ALAUDIDÆ.—The Larks
Char. First primary very short or wanting. Tarsi scutellate anteriorly and posteriorly, with the plates nearly of corresponding position and number. Hind claw very long and nearly straight. Bill short, conical, frontal feathers extending along side of the bill; the nostrils concealed by a tuft of bristly feathers directed forward. Tertials greatly elongate beyond the secondaries.
Alaudinæ. Bill stout, short, and conical; nasal fossæ transverse and completely filled by the thick tuft of bristly feathers, and perforated anteriorly by a circular nasal opening. (Old and New World.)
Crown with a depressed soft crest of feathers, of normal structure; a spurious primary; tail deeply emarginate … Alauda.
Crown without a crest, but occiput with an erectile tuft of narrow elongated feathers on each side. No spurious primary; tail square, or slightly rounded … Eremophila.
Calandritinæ. Bill broader, more depressed, and straighter at the base; nasal fossæ longitudinal, large, elongated, the nasal opening rather linear. (Old World.)
Of the Alaudidæ only the two genera diagnosed above belong to the American continent; and one of them is properly only a wanderer from the Old World, while the other is cosmopolitan.
The most characteristic feature of the Larks among other oscine families is seen in the scutellation of the tarsus. The anterior half of this is covered by divided scales lapping round on the sides, but instead of the two plates which go one on each side of the posterior half and unite ultimately behind as an acute ridge, there is but one which laps round on the sides, and is divided into scales like the anterior ones, but alternating with them. The posterior edge of the tarsus is as obtuse as the anterior, instead of being very acute. There is a deep separating groove on the inner side of the tarsus; and there may be really but one plate divided transversely, the edges meeting at this place.
In the elongated hind claw and lengthened tertials, general style of coloration, mode of life, and manner of nesting, there is a decided approximation in the Alaudidæ to the Anthinæ, of the family Motacillidæ; but in these the posterior edge of the tarsus is sharp and undivided transversely, the toes more deeply cleft, the bill more slender, etc.,—their relations being rather nearer to the Sylvicolidæ than to the present family.
Gen. Char. Bill very small, less than half the length of the head, conical; nostrils exposed; rictal bristles quite strong; commissure without notch; tarsus much longer than middle toe; lateral toes equal; posterior toe about as long as the middle, its claw longer than the digit, and nearly straight; claws of anterior toe very small. Wing