TETRAONINiE. LAGOPUS. 
207 
301. 1. Lagopus albus, Gmel. Willow Ptarmigan. — Wil- 
low-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 slo- 
ping, edges thin and nearly parallel, the tip rounded ; tail short, 
slightly rounded, of fourteen feathers, independently of the long in- 
cumbent 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^. 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, Nott. Man. v. i. p. 674. 
Willow Grouse, Tetrao saliceti, Aud. Orn. Biog. v. ii. p. 528. 
302. 2. Lagopus Americanus, Aud. American Ptarmigan. 
Not figured. 
Bill much narrower, with the ridge on each side of the lower mandible 
obsolete ; claws (when entire) elongated, arched, with the sides sloping, 
the edges thin and nearly parallel, the tip round ; tail short, even, of 
fourteen feathers, independently of the long incumbent coverts. 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 ; male with a black loral band, extending beyond the eye. In 
summer, the general colour of the upper parts, fore neck, and sides, 
reddish-yellow, finely undulated transversely with blackish-brown, 
and greyish- white ; the bars on the head and neck larger ; the two 
long incumbent tail-feathers similar to those of the back ; the rest 
brownish-black, tipped with white ; little white on the lower parts, 
