Parus hudsonicus, Forst.
HUDSON’S BAY CHICKADEE; BROWN-CAPPED CHICKADEE.
Parus hudsonicus, Forster, Philos. Trans. LXII, 1772, 383, 430.—Aud. Orn. Biog. II, 1834, 543, pl. cxciv.—Ib. Birds Am. II, 1841, 155, pl. cxxviii.—Baird, Birds N. Am. 1858, 395; Review, 82.—Samuels, 185.—Dall & Bannister (Alaska). Parus hudsonicus var. littoralis, Bryant, Pr. Bost. Soc. N. H. IX. 1863, 368.
Sp. Char. Above yellowish olivaceous-brown; top of head purer brown, not very different in tint. Chin and throat dark sooty-brown. Sides of head white. Beneath white; sides and anal region light brownish-chestnut. No whitish on wings or tail. Tail nearly even, or slightly emarginate and rounded. Lateral feathers about .20 shortest. Length about 5 inches; wing, 2.40; tail, 2.66.
Hab. Northern portions of North America, from Atlantic to Pacific.
Specimens from the most northern localities appear larger than those from Maine and Nova Scotia (P. littoralis, Bryant), with proportionally longer tails (3.00 inches, instead of 2.40). We can, however, detect no other difference.
The Parus sibiricus of Europe is very similar in coloration and characters to the P. hudsonicus. The principal difference is seen in the cheeks, which in sibiricus are pure white, this color extending along the entire side of the neck, widening behind, and extending round towards the back. In hudsonicus the cheeks behind the eyes and sides of the neck are ash-gray, the white being confined to the region below or near the eye. The smoky-gray of the upper part of head and neck in sibiricus is in a stronger contrast with the brighter rufescent-gray of the back, and is separated from it by an obscure, concealed, whitish dorsal half-collar, represented in hudsonicus only by a dull grayish shade in the plumage.
Habits. This interesting species, one of the liveliest and most animated of its family, belongs to the northern and eastern sections of North America. It is found in the eastern and northern portions of Maine, and probably also in the northern parts of New York, Vermont, and New Hampshire. In the heavily wooded mountain-valley of Errol, in the latter State, Mr. Maynard met with this bird in the latter part of October, in company with the common atricapillus. In the same month he also obtained two birds in Albany, in the northwestern corner of Maine. A single specimen was taken at Concord, Massachusetts, October 29, by Mr. William Brewster.
Near Calais it is resident, but not common. It is more abundant in the islands of the Bay of Fundy, where it takes the place, almost exclusively, of the atricapillus. The writer first met with these lively little wood-sprites
in 1850, in the thick swampy woods which cover one of the small islands near Grand Menan. Their general appearance as they flitted through the woods, or rustled restlessly among the tangled débris of decaying trees and underbrush with which the forest was choked, was not unlike that of our common Black-Cap. Yet there was an indescribable something both in their cries and in their manners that at once suggested a difference of species. To my ear their cries were sharper, clearer, and a trifle harsher. There was none of that resonant jingle so full of charm in the Chickadee. Their notes, too, were more articulate, more like distinct words, and were brought out at certain times with an emphasis the effect of which was very striking. Beginning with tschā-dēē, the dēē-dēē-dēē was reiterated with an almost incessant volubility.