Plate CCCLXI. Male and Female.
A slender crest of narrow feathers; tail of twenty feathers; rounded.
Male with the upper parts blackish-brown, the wings lighter; elongated
feathers on the head greyish-brown; hind neck minutely undulated with
bluish-grey; scapulars, inner secondaries, and smaller wing-coverts
also minutely undulated with grey and brownish-red; rump and upper
tail-coverts and quills clove-brown, secondaries bordered and tipped
with yellowish-grey, primaries mottled with grey on their outer webs,
tail black; sides of head, fore part and sides of neck, and fore part
of breast, greyish-black; loral space and throat barred with white;
lower parts generally blackish-grey, the feathers of the sides with a
median streak and terminal patch of white, and more or less barred
with dusky, as are the lower tail-coverts; axillary feathers and
inner wing-coverts white; tarsal feathers brownish-grey. Female
considerably smaller, with the upper parts greyish-brown, barred with
dusky, and minutely undulated; the fore neck banded with brown and
pale sienna, the rest of the lower parts as in the male, but paler.
_Male_, 22, wing 9-1/2. _Female_, 19-1/2, wing 9.
From the eastern spurs of the Rocky Mountains, to the Columbia River,
and northward to Hudson's Bay. Abundant. Resident.
Tetrao obscurus, Say, Long's Exped.
Tetrao obscurus, Bonap. Syn. p. 127.
Dusky Grouse, Tetrao obscurus, Bonap. Amer. Orn. v. iii. pl.
18.
Tetrao obscurus, Dusky Grouse, Swains. & Rich. F. Bor. Amer.
v. ii. p. 344.
Dusky Grouse, Nutt. Man. v. i. p. 666.
Dusky Grouse, Tetrao obscurus, Aud. Orn. Biog. v. iv. p. 446.
*** Tail very short, transversely arched, much rounded.