In the summer, according to Mr. Ridgway, it retires to the cedar and piñon mountains to breed, at that time seldom visiting the river valley. In the winter it resorts in large flocks to the vicinity of corrals and barn-yards, where it becomes very tame and familiar. On the 3d of June he met with the breeding-ground of a colony of these birds, in a grove of cedars on the side of a cañon, in the mountains, near Pyramid Lake. Nearly every tree contained a nest, and several had two or three. Each nest was saddled on a horizontal branch, generally in a thick tuft of foliage, and well concealed. The majority of these nests contained young, and when these were disturbed the parents flew about the heads of the intruders, uttering a soft chuck. The maximum number of eggs or young was six, the usual number four or five. In notes and manners it seemed to be an exact counterpart of the C. ferrugineus.
Dr. Suckley found these birds quite abundant at Fort Dalles, but west of the Cascade Mountains they were quite rare. At Fort Dalles it is a winter resident, where, in the cold weather, it may frequently be found in flocks in the vicinity of barn-yards and stables. Dr. Cooper also obtained specimens of this Grakle at Vancouver, and regards it as a constant resident on the Columbia River. He saw none at Puget Sound. In their notes and habits he was not able to trace any difference from the Rusty Blackbird of the Atlantic States. In winter they kept about the stables in flocks of fifties or more, and on warm days flew about among the tree-tops, in company with the Redwings, singing a harsh but pleasant chorus for hours.
Dr. Cooper states it to be an abundant species everywhere throughout California, except in the dense forests, and resident throughout the year. They frequent pastures and follow cattle in the manner of the Molothrus. They associate with the other Blackbirds, and are fond of feeding and bathing along the edges of streams. They have not much song, but the noise made by a large flock, as they sit sunning themselves in early spring, is said to be quite pleasing. In this chorus the Redwings frequently assist. At Santa Cruz he found them more familiar than elsewhere. They frequented the yards about houses and stables, building in the trees of the gardens, and collecting daily, after their hunger was satisfied, on the roofs or on neighboring trees, to sing, for an hour or two, their songs of thanks. He has seen a pair of these birds pursue and drive away a large hawk threatening some tame pigeons.
This species has an extended distribution, having been met with by Mr. Kennicott as far north as Pembina, and being also abundant as far south as Northern Mexico. In the Boundary Survey specimens were procured at
Eagle Pass and at Santa Rosalia, where Lieutenant Couch found them living about the ranches and the cattle-yards.
Mr. Dresser, on his arrival at Matamoras, in July, noticed these birds in the streets of that town, in company with the Long-tailed Grakles Q. macrurus and Molothrus pecoris. He was told by the Mexicans that they breed there, but it was too late to procure their eggs. In the winter vast flocks frequented the roads near by, as well as the streets of San Antonio and Eagle Pass. They were as tame as European Sparrows. Their note, when on the wing, was a low whistle. When congregated in trees, they kept up an incessant chattering.
Dr. Coues found them permanent residents of Arizona, and exceedingly abundant. It was the typical Blackbird of Fort Whipple, though few probably breed in the immediate vicinity. Towards the end of September they become very numerous, and remain so until May, after which few are observed till the fall. They congregate in immense flocks about the corrals, and are tame and familiar. Their note, he says, is a harsh, rasping squeak, varied by a melodious, ringing whistle. I am indebted to this observing ornithologist for the following sketch of their peculiar characteristics:—
“Brewer’s Blackbird is resident in Arizona, the most abundant bird of its family, and one of the most characteristic species of the Territory. It appears about Fort Whipple in flocks in September; the numbers are augmented during the following month, and there is little or no diminution until May, when the flocks disperse to breed.
“The nest is placed in the fork of a large bush or tree, sometimes at the height of twenty or thirty feet, and is a bulky structure, not distantly resembling a miniature Crow’s nest, but it is comparatively deeper and more compactly built. A great quantity of short, crooked twigs are brought together and interlaced to form the basement and outer wall, and with these is matted a variety of softer material, as weed-stalks, fibrous roots, and dried grasses. A little mud may be found mixed with the other material, but it is not plastered on in any quantity, and often seems to be merely what adhered to the roots or plant-stems that were used. The nest is finished inside with a quantity of hair. The eggs are altogether different from those of the Quiscali and Agelæi, and resemble those of the Yellow-headed and Rusty Grakles. They vary in number from four to six, and measure barely an inch in length by about three fourths as much in breadth. The ground-color is dull olivaceous-gray, sometimes a paler, clearer bluish or greenish gray, thickly spattered all over with small spots of brown, from very dark blackish-brown or chocolate to light umber. These markings, none of great size, are very irregular in outline, though probably never becoming line-tracery; and they vary indefinitely in number, being sometimes so crowded that the egg appears of an almost uniform brownish color.
“In this region the Blackbirds play the same part in nature’s economy that the Yellow-headed Troupial does in some other parts of the West, and