abundant. Many specimens were obtained in Sitka by Mr. Bischoff. None have so far been recorded from the Aleutian Islands.

Dr. Kennerly frequently saw these birds near the Pueblo of Zuñi in New Mexico; in the months of October and November they were very abundant among the cedars to the westward of that settlement as far as the Little Colorado. Dr. Heermann also met with them near Fort Yuma in December, having previously noticed them during the fall, migrating in large flocks.

Mr. Aiken frequently found this species throughout the winter in Colorado. It was very common during March and the first of April. By May only a few straggling females were seen, and then they all disappeared.

The nests of this species have a general resemblance in structure to those of the common hyemalis. They are well constructed and remarkably symmetrical, made externally of mosses and other coarse materials, within which is very nicely woven an inner nest of fine, bent stems of grasses, lined with hair. The eggs, four or five in number, resemble those of the hyemalis, but are lighter. They have a ground-color of greenish-white, marked about the larger end with fine dots of reddish-brown. Their measurement is .75 by .60 of an inch.

Junco caniceps, Baird.

RED-BACKED SNOWBIRD.

Struthus caniceps, Woodhouse, Pr. A. N. Sc. Phila. VI, Dec. 1852, 202 (New Mexico and Texas).—Ib. Sitgreaves’s Report Zuñi & Colorado, 1853, 83, pl. iii. Junco caniceps, Baird, Birds N. Am. 1858, 468, pl. lxxii, f. 1.—Cooper, Orn. Cal. 1, 201.

Sp. Char. Bill yellowish; black at the tip. Above ashy (of the same shade before and behind); the head and neck all round of this color, which extends (paling a little) along the sides, leaving the middle of the belly and crissum quite abruptly white. Lores conspicuously but not very abruptly darker. Interscapular region abruptly reddish chestnut-brown, which does not extend on the wings, and makes a triangular patch. Two outer tail-feathers entirely white; third with a long white terminal stripe on the inner web. Young streaked with blackish above and below, except along middle of belly and behind. Length, 6.00; wing, 3.23; tail, 3.04.

Hab. Rocky Mountains; from Black Hills to San Francisco Mountains, Arizona. Wahsatch and Uintah Mountains (Ridgway).

This species is similar to the common J. hyemalis in color, though paler; the tint of the under parts and sides is not quite so dark, and is less abruptly defined against the white. The conspicuous chestnut patch on the back and the dusky lores will distinguish them. The edge of the outer web of the third tail-feather is brown, not white. It differs from oregonus and cinereus in having no chestnut on the wings, especially the tertials, and from the former in the extension of the ash of the neck along the sides and much lighter head.