DUSKY GROUSE. 23 
and well-flavored, and sometimes individuals are met 
with that will weigh as much as three pounds and a half. 
DENDRAGAPUS OBSCURUS. 
Geographical Distribution.—Rocky Mountains from Southern 
Idaho, Montana, and Western South Dakota to New Mexico 
and Arizona. 
Adult Male.—Forehead, dull rufous ; back of head brownish 
black, feathers tipped with rusty; in some specimens the top of 
head is all slaty gray like the back; back of neck and upper 
parts, blackish brown, vermiculated with lighter brown, and 
gray, sometimes coarsely mottled with the same, especially on 
the wings, which are occasionally blotched with black; scapulars 
streaked with white along the shafts to the tips; white space on 
sides of neck; throat, white,mottled with black; sides of head,black; 
lower parts, slate gray, mottled with brown upon the flanks, the 
feathers of which have streaks along the shafts, and terminal spots 
white; under tail-coverts, blackish brown, with subapical bar of 
gray, mottled and bordered with black and tipped with white; 
tail, rounded, black, and tipped with a broad gray band; pri- 
maries, dark brown, outer webs and tips, mottled with gray; legs 
covered to the toes with pale brown feathers; bill, horn color. 
Total length, about 20 inches; wing, about 94; tail, 8; tarsus, 1}. 
Weight, about 3 pounds. 
Adult Female.—Upper parts, mottled with black and buff, 
these frequently taking the form of bars and blotches; feathers, 
usually tipped with white; wings, slaty brown or gray, barred 
and mottled with buff, central streaks and terminal points, white; 
primaries, dark brown; throat, mostly buff; sides and front of 
neck and chest, dark brownish gray, barred and tipped with 
buffy white, sometimes only a spot of white on the tip; rest of 
under parts, slaty gray, the flank feathers tipped with white 
and mottled with buff and black; central tail feathers, blackish 
brown barred with pale grayish brown, the bars mottled with 
blackish; rest of tail, black, slightly mottled with gray, anda gray 
band at tip. Total length, about 17 inches; wing, 8}; tail, 6. 
