On the Rio Colorado they kept chiefly among the cotton-wood trees that grew along its banks, and its familiar notes were almost the only sounds heard. They were observed in large and busy flocks along the smaller streams in company with the Least Tit and the Reguli. Dr. Gambel did not find them, however, so abundant on the California sides of the ridge, where other species took their place.
Dr. Heermann found this Titmouse abundant among the mountains surrounding the Volcano in the southern mines, and subsequently met with them on the summit of the Tejon Pass. He thinks their notes and habits very similar to those of the atricapillus. Dr. Suckley obtained a single specimen at Fort Dalles, but regarded it as extremely rare in that locality. Dr. Woodhouse found it quite abundant in the San Francisco Mountains of New Mexico, where it was feeding among the tall pines in company with kindred species.
Parus montanus.
Mr. Ridgway found this species in great abundance among the pines on the eastern slope of the Sierra Nevada Mountains, as well as in all the extensive cedar-groves on the mountains to the eastward. Around Carson City this species was found throughout the winter. In its manners and notes, particularly the latter, it was hardly distinguishable from P. carolinensis. The notes are described as louder and more distinct, though their calls in spring are rather less clearly articulated.
Parus atricapillus, Linn. Syst. Nat. I, 1766, 341 (based on Parus atricapillus canadensis, Brisson, III, 553, tab. xxix, fig. 1).—Baird, Birds N. Am. 1858, 390; Review, 80.—Sclater, Catal. 1861, 13, No. 80.—Dall & Bannister (Alaska).—Samuels, 182. Pœcile atricapilla, Bon. Consp. 1850, 230. Parus palustris, Nutt. Man. I, 1832, 79.
Figured by Audubon, Wilson, etc.
Sp. Char. Second quill as long as the secondaries. Tail very slightly rounded; lateral feathers about .10 shorter than middle. Back brownish-ashy. Top of head and throat black, sides of head between them white. Beneath whitish; brownish-white on the sides. Sides of outer tail-feathers, some of primaries, and secondaries conspicuously margined with white. Length, 5.00; wing, 2.50; tail, 2.50.
Hab. Eastern North America, north of 39th parallel.
In this species the first quill is spurious; the fourth quill is longest; the fifth and sixth successively a little shorter; the third is about equal to, or a little shorter than, the eighth; the second is a very little longer than the secondaries. The tail is a little rounded, the innermost feather longest, the rest successively a little shorter. The greatest difference in length of tail-feathers amounts to .30 of an inch.
PLATE VII.
1. Parus atricapillus, Linn. ♂ N. York, 12851.
2. Parus var. septentrionalis, Harris. Mission Valley.
3. Parus var. occidentalis, Baird. Washington Territory.
4. Parus carolinensis, Aud. ♂ D. C., 706.
5. Parus montanus, Gambel. Nevada, 53456.
6. Parus rufescens, Towns. Pacific coast, 45946.
7. Parus hudsonicus, Forst. N. Scotia.
8. Psaltriparus melanotis, Bon. Mexico.
9. Psaltriparus minimus, Towns. Cal. 22417.
10. Psaltriparus var. plumbeus, Baird. Arizona.
11. Auriparus flaviceps, Sund. 42210.
The entire crown, from the bill to the upper part of the back, coming down on the sides to the lower level of the eye, is pure black, although the edge alone of the lower eyelid is of this color. A second black patch begins at the lower mandible and occupies the entire under surface of the head and throat, but not extending as far back within a quarter of an inch as that on the upper part of the neck. The space between these two patches, on the sides of the head and neck, is white, this color extending along the black of the back of the neck as far as its truncated extremity, but not bordering it behind. The middle of the breast and belly, as far as the vent, is dull white, that immediately behind the black of the throat a little clearer. The sides of the breast and body under the wings, with the under tail-coverts, are pale, dull brownish-white. The back, rump, and upper tail-coverts are of a dirty bluish-ash, washed with yellowish-brown, especially on the rump. The wings are brown; the outer edges of the third to the seventh primaries narrowly edged with whitish; the innermost secondaries more broadly and conspicuously edged with the same; larger coverts edged with dirty whitish. Outer webs of tail-feathers edged with white, purest and occupying half the web in the external one, narrowing and less clear to the central feathers, the basal portions, especially, assuming more the color of the back.
Habits. The common Chickadee or Black-capped Titmouse is so well known throughout the greater portion of the United States as to be generally accepted, by common consent, as the typical representative of its numerous family. Until recently it has been supposed to be universally distributed over the continent, and while this is now questioned, it is not quite clear where its limits occur. In Eastern Maine the Parus hudsonicus and this species meet. In the District of Columbia it crosses the northern limits of P. carolinensis, and in the northern Mississippi Valley it mingles with the var. septentrionalis. It remains to be ascertained how far the species exceeds these bounds.
A few individuals of this species were observed by Mr. Dall, December 12, at Nulato, where, however, it was not common. They were also obtained by Bischoff at Sitka and Kodiak.
As in very many essential respects the whole family of Paridæ are alike in their characteristics of habits, their manner of collecting food, their restless, uneasy movements, the similarity of their cries, their residence in hollow trees or branches, and their nesting in similar places, with the exception only of a few species that construct their own pouch-like nests, we have taken the best known as the common point of comparison. Except in the variations in plumage, the points of difference are never great or very noticeable.
In New England the Black-Cap is one of our most common and familiar birds. In the vicinity of Calais, Mr. Boardman speaks of it as resident and abundant. The writer did not meet with it in Nova Scotia, nor even in the islands of the Bay of Fundy, where the hudsonicus is a common bird.
It