The nests and eggs were found in the Wahsatch Mountains, June 23. The nests were generally among bushes, in willow thickets, along the streams, about a foot from the ground. One of these nests found in a clump of willows, about two feet from the ground and near a stream, is a compact, firmly built nest, in the shape of an inverted dome. It is two and a half inches in height, and about the same in diameter. Externally it is composed of a coarse framework of strips of willow bark firmly bound around. Within is a compactly woven inner nest, composed of straws, mingled and interwoven with horse-hairs. The cavity has a depth and diameter of two inches. The eggs, four in number, measure .85 by .63 of an inch. Their form is a rounded oval, distinctly pointed at one end. They have a greenish-white ground, marked and blotched with splashes of purplish and reddish brown. Melospiza melodia, var. heermanni, BAIRD. HEERMANN’S SONG SPARROW. _Melospiza heermanni_, BAIRD, Birds N. Am., 1858, 478, pl. 70, f. 1.—COOPER, Orn. Cal. 1, 212. SP. CHAR. Somewhat like _melodia_, but darker. The streaks on the back and under parts blacker, broader, more distinct, and scarcely margined with reddish, except in winter plumage. The median stripe on vertex indistinct. General shade of coloration olivaceous-gray rather than rusty. Length, 6.40; wing, 2.56; tail, 3. Bill and legs in size and color most like _melodia_. HAB. Southern California; eastern slope of Sierra Nevada (Carson City), and West Humboldt Mountains, Nev.; RIDGWAY. Of the various races of _M. melodia_, this one approaches nearest the typical style of the Atlantic region; agreeing with it in thicker bill and shorter tail, as compared with the var. _fallax_, which occurs between them. It differs from the var. _melodia_, however, in a more grayish cast to the ground-color of the upper plumage, being olivaceous-gray, rather than reddish; the black dorsal streaks are very much broader than the rusty ones, instead of about equal to them in width, and the edges to the interscapular feathers are not appreciably paler than the prevailing shade, instead of being hoary whitish, in strong contrast. In spring the “bridle” on the side of the throat and the spots on the jugulum have the black of their central portion in excess of their external rufous suffusion; but in autumn the rusty rather predominates; at this season, too, the rusty tints above overspread the whole surface, but the black streaks are left sharply defined. At all seasons, the spots on the jugulum are broader and rather more numerous than in _melodia_. The young can scarcely be distinguished from those of _melodia_, but they have the dark streaks on the crown and upper tail-coverts considerably broader.