Plate CCCCXVIII. Adult in winter.
Claws slightly arched, depressed, broad, thin-edged, rather pointed;
tail rather short, slightly rounded, of fourteen feathers. Plumage in
winter entirely pure white. In summer, the head and neck barred with
blackish-brown and brownish-white; upper parts blackish-brown, barred
with reddish-yellow; breast, belly, and sides pale reddish-yellow,
broadly barred with blackish-brown; tail white.
Tetrao (Lagopus) leucurus, White-tailed Grouse, Swains. &
Rich. F. Bor. Amer. v. ii, p. 356.
White-tailed Grouse, Nutt. Man. v. ii. p. 612.
White-tailed Grouse, Tetrao leucurus, Aud. Orn. Biog. v. v. p.
200.