more care and neatness of interweaving. The eggs are usually five in number, of an oblong-oval shape. The ground is a whitish clay-color, marked more or less fully with blotches of a ferruginous-brown. In some these markings are few, and arranged only about the larger end. In others they are generally diffused, and impart a deep ferruginous color to the whole egg, and disguise or conceal the ground. They vary also in size,—in length from .70 to .63 of an inch, and in breadth from .52 to .50. Their usual size is .70 by .52.
Two nests of this bird taken in Lynn, Mass., by Mr. George O. Welch, are characteristic of their usual style in architecture. One of these has a diameter of four and a height of two and a half inches. Its base, as well as the great mass of its periphery, is made of a very loose intertwining of minute stems of vegetables and dry grasses. The ends of these project from the exterior of the nest at the upper rim, and present a very peculiar appearance, as of an enclosure of palisades. The interior is lined with horsehair. The other is made of similar materials, of a less rigid character and closer texture. Its rim presents the same peculiarities of projecting ends, arranged like a fence above the nest itself. Its dimensions also are about the same. It is, however, much more compactly constructed, with thicker walls and a less open network of dry grasses, and stiff wiry stems of dried plants intermixed with a few pine leaves. The whole is very carefully and warmly lined with horsehair and the softer fur of small quadrupeds. These nests contained, one three, and the other four eggs.
Spizella socialis, Bonap.
CHIPPING SPARROW; CHIPPY.
Fringilla socialis, Wilson, Am. Orn. II, 1810, 127, pl. xvi, f. 5.—Aud. Orn. Biog. II, 1834, 21; V, 517, pl. civ. Spizella socialis, Bon. List, 1838.—Ib. Conspectus, 1850, 480.—Baird, Birds N. Am. 1858, 473.—Cooper & Suckley, 203.—Samuels, 320. Emberiza socialis, Aud. Syn. 1839.—Ib. Birds Am. III, 1841, 80, pl. clxv. Spinites socialis, Cabanis, Mus. Hein. 1851, 133.
Sp. Char. Rump, back of neck, and sides of neck and head, ashy. Interscapular region with black streaks, margined with pale rufous. Crown continuous and uniform chestnut. Forehead black, separated in the middle by white. A white streak over the eye to nape, and a black one from the base of the bill through and behind the eye. Lores dusky. Under parts unspotted whitish, tinged with ashy on the sides and across the upper breast. Tail-feathers and primaries edged with paler, not white. Two narrow white bands across the wing-coverts. Bill black. Length, 5.75; wing, nearly 3.00; tail, 2.50 (or less).
Young. Immature birds and frequently the adult females with the cap streaked with blackish lines, the chestnut nearly or sometimes quite wanting. Birds of the year streaked beneath and on rump.
The color of bill varies; sometimes entirely black throughout, sometimes very light (but never reddish as in S. pusilla), with all intermediate stages. There is usually, however, a
dusky tinge in the upper bill, wanting in pusilla, and the lores are almost always more or less dusky in all stages of plumage.
Hab. Eastern Province of North America; north to Great Slave Lake, and south to Orizaba, Eastern Mexico, where it is resident. Oaxaca (perhaps var. arizonæ), Jan. (Scl. 858, 304); Xalapa (Scl. 1859, 365); Cordova (Scl. 1856, 305); Cuba (Lawr. 1860, VII., 1269).