301. 1. Lagopus albus, Gmel. Willow Ptarmigan.--Willow-Grouse.

Plate CXCI. Male, Female, and Young.

Bill very thick, convex, with a strong ridge on each side of the lower

mandible; claws (when entire) elongated, arched with the sides

sloping, edges thin and nearly parallel, the tip rounded; tail short,

slightly rounded, of fourteen feathers, independently of the long

incumbent coverts. Bill black, claws dusky at the base, yellowish-grey

on the edges and tip. In winter, the plumage white, excepting the

shafts of the primaries, which are brown, and the tail-feathers, which

are black, narrowly tipped with white, and with the base of the same

colour. In summer, the male with the head and neck bright chestnut,

more or less variegated with dusky; the upper parts and sides having

the feathers brownish-black, transversely barred with reddish-yellow,

and narrowly tipped with white; the quills and larger coverts, with

most of the smaller, middle of breast, abdomen, and feet, white; tail

as in winter, the middle incumbent feather like the back. Female

similar, with the markings larger, the breast and abdomen coloured

like the sides, the head and neck without chestnut. Young, when in

down, of a yellowish tint, variegated above with large streaks of dark

brown, the top of the head with a longitudinal patch of brown, edged

with black. When fledged, the young resemble the female.

_Male_, 17, 26-1/2. _Female_, 16, 26.

In Maine, New Brunswick, and Nova Scotia, during winter. Breeds

plentifully in Newfoundland, Labrador, and the Fur Countries. Rocky

Mountains.

Tetrao (Lagopus) saliceti, Willow Grouse, Swains. & Rich. F.

Bor. Amer. v. ii. p. 351.

Willow Grouse or Large Ptarmigan. Nutt. Man. v. i. p. 674.

Willow Grouse, Tetrao saliceti, Aud. Orn. Biog. v. ii. p. 528.

A Synopsis of the Birds of North America · 第 281 / 469 题