SOOTY GROUSE. 97 
In size this bird equals the Dusky Grouse and like its 
relative does not migrate, unless ascending and descend- 
ing lofty mountains at certain periods of the year can be 
called migrating, and breeds wherever found. 
DENDRAGAPUS OBSCURUS FULIGINOSUS. 
Geographical Distributin.—Coast Range of Mountains from 
California eastward to Nevada, Western Idaho to Northern 
Alaska. 
Adult Male.—Above, brownish black, lighter upon the back 
of neck, which is more of a slate color, and mottled, especially 
upon the wings, about the tips of the feathers, with brown and 
pale gray; rump and upper tail-coverts, mottled also with the 
same; no white central streaks on the scapulars, nor any very 
distinct white space on the side of neck; throat and sides of face, 
usually black, with a few small white spots on the former; breast 
sooty black, grading into very dark slate on rest of under parts; 
under tail-coverts, black, with white tip and a gray subapical bar 
mottled with black; tail, black, with a dark gray band at tip. 
Total length, about 21 inches; wing, 94; tail 8. 
Adult Female.—Resembles the female of . obscurus, but is 
much darker in hue, with a good deal of dark rusty on the upper 
parts. 
