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.
Habits. The California Song Sparrow has been named in honor of the late Dr. Heermann, who first obtained specimens of this bird in the Tejon Valley, and mistook them for the Zonotrichia guttata of Gambel (M. rufina), from which they were appreciably different. Whether a distinct species or only a local race, this bird takes the place and is the almost precise counterpart, in most essential respects, of the Song Sparrow of the East. The exact limits of its distribution, both in the migratory season and in that of reproduction, have hardly yet been ascertained. It has been found in California as far north as San Francisco, and to the south and southeast to San Diego and the Mohave River.
The California Song Sparrow is the characteristic Melospiza in all that portion of the State south of San Francisco. It is found, Dr. Cooper states, in every locality where there are thickets of low bushes and tall weeds, especially in the vicinity of water, and wherever unmolested it comes about the gardens and houses with all the familiarity of the common melodia. The ground, under the shade of plants or bushes, is their usual place of resort. There they diligently search for their food throughout the day, and rarely fly more than a few yards from the place, and remain about their chosen locality from one year’s end to another, being everywhere a resident species. In the spring they are said to perch occasionally on some low bush or tree, and sing a lively and pleasant melody for an hour at a time. Each song, Dr. Cooper remarks, is a complete little stanza of a dozen notes, and is frequently varied or changed entirely for another of similar style, but quite distinct. Although no two birds of this species sing just alike, there is never any difficulty in distinguishing their songs when once heard. There is, he thinks, a similarity of tone and style in the songs of all the species of true Melospiza, which has led other observers to consider them as of only one species, when taken in connection with their other similarities in colors and habits.
Dr. Cooper found a nest, presumed to belong to this bird, at Santa Cruz, in June. It was built in a dense blackberry-bush, about three feet from the ground, constructed with a thick periphery and base of dry grasses and thin strips of bark, and lined with finer grasses. The eggs were of a smoky white, densely speckled with a dull brown. Although this bird was abundant around Santa Cruz, he was only able, after much searching, to find two