138 CHECK-LIST OF NORTH AMERICAN BIRDS. 
Dendragapus obsctirus (Say). 
RancGE.— Rocky Mountain and Pacific coast regions from the upper 
Yukon and upper Mackenzie rivers south to the mountains of Cali- 
fornia and central Arizona. 
a. Dendragapus obscurus obscurus (Say). Dusky Grouse. [297.] 
Tetrao obscurus Say, in Lona’s Exped., II, 1823, 14 (note). (Near “ Defile 
Creek,” about 20 miles north of Colorado Springs, Colorado.) 
RanGeE.— Rocky Mountains from northern Utah and northern Colorado to 
central western New Mexico and central Arizona, and west to East Humboldt 
Mountains, Nevada. 
b. Dendragapus obscurus fuligindsus (Rincway). Sooty Grouse. ([297a.] 
Canace obscura var. fuliginosa Ripaway, Bull. Essex Inst., V, Dec., 
1873, 199. (Cascade Mountains, at foot of Mt. Hood, Oregon.) 
RancE.— Northwest coast mountains from Alaska and southern Yukon 
to Oregon. 
c. Dendragapus obscurus richardsoni (Dovucuas). Richardson’s Grouse. 
[297b.] 
Tetrao richardsonii Douauas, Trans. Linn. Soc. Lond., XVI, Pt. I, 1829, 
141. (Rocky Mountains, Lat. 52° N., Long. 115° W.; more numerous 
in Columbia River region, Lat. 48° N., Long. 118° W.) 
RancGe.— Rocky Mountains from southwestern Mackenzie to eastern 
Oregon, Montana, and Wyoming. 
d. Dendragapus obscurus siérre CHapMAN. Sierra Grouse. [297c.] 
Dendragapus obscurus sierre CHAPMAN, Bull. Am. Mus. N. H., XX, April 
25, 1904, 159. (Echo, El Dorado Co., California.) 
RanGe.— Fort Klamath, Oregon, south through the mountains of California 
to Mount Pinos (near Tejon). 
GENus CANACHITES STEJNEGER. 
Canachites STEJNEGER, Proc. U. S. Nat. Mus., VIII, 1885, 410. Type, 
by orig. desig., Tetrao canadensis LINN&US. 
Canachites canadénsis (LINN “Us). 
RancE.— Wooded regions of Canada and Alaska south to northern 
border of the United States. 
