nest of the two species, he adds, were also so much alike in manner of construction and situation, and the eggs so similar, that it required a careful observation to identify a nest when one was found.
The eggs from one nest of the Passerella schistacea measure .90 by .70 of an inch, have a ground of a light mountain-green, and are profusely spotted with blotches of a rufous-brown, generally diffused over the entire egg.
Another nest of this species, obtained in Parley’s Park, in the Wahsatch Mountains, by Mr. Ridgway, June 23, 1869, was built in a clump of willows, about two feet from the ground. The nest is two inches in height, two and a half in diameter, cavity one and a half deep, with a diameter of two. It is composed externally of coarse decayed water-grass, is lined with fine hair and finer material like the outside. The eggs, four in number, are .80 by .67 of an inch, of a very rounded oval shape, the ground-color of a pale green, blotched and marked chiefly at the larger end with brown spots of a wine-colored hue.
Passerella townsendi, var. megarhynchus, Baird.
THICK-BILLED SPARROW.
Passerella schistacea, Baird, Birds N. Am. 1858, p. 490 (in part; Ft. Tejon specimens). Passerella megarhynchus, Baird, Birds N. Am. 1858, p. 925 (Appendix).—Cooper, Orn. Cal. I, 222. Passerella schistacea, var. megarhynchus, Ridgway, Rept. Geol. Expl. 40th Par.
13757 ♂
Sp. Char. Similar to var. schistacea in colors, size, and general proportions; but bill enormously thick, its depth being very much greater than the distance from nostril to tip, instead of much less; color of lower mandible rosy milk-white, instead of maize-yellow. Bill, .35 from nostril, .47 deep; wing, 3.30; tail, 3.50; tarsus, .83; middle toe without claw, .63; hind claw, .50.
Hab. Sierra Nevada, from Fort Tejon north to 40° latitude (Carson City, Nevada, breeding, Ridgway).