TIO CHECK-LIST OF NORTH AMERICAN BIRDS. 



296. Cyrtonyx montezumce (Vic). 



Massena Partridge. 



Ortyx montezumcB Vigors, Zool. Journ. V. 1830, 275. 

 Cyrtonyx montezumm Stejn. Auk, II. Jan. 1885, 46. 

 [B 477, C 394, R 485, C 578.] 

 Geog. Dist. — Tablelands of Mexico, from the city of Mexico 

 north to western Texas, New Mexico, and Arizona. 



Subfamily TETRAONIN.a!. Grouse. 



Genus DENDRAGtAPUS Elliot. 



Subgenus DBNDRAGAPUS. 



Dendragapus Elliot, Pr. Ac. Nat. Sci. Phila. 1864, 23. Type, 

 Tetrao obscurus Say. 



297. Dendragapus obscurus (Say). 



Dusky Grouse. 



Tetrao obscurics Say, Long's Exp. II. 1823, 14. 

 Dendragapus obscurus Elliot, Pr. Ac. Nat. Sci. Phila. 1864, 23. 

 [B 4S9>C38i, R471, CS57.J 

 Geog. Dist. — Rocky Mountains, from central Montana and 

 southeastern Idaho to New Mexico and Arizona, eastward to the 

 Black Hills, South Dakota, and westward to East Humboldt Moun- 

 tains, Nevada. 



297 a. Dendragapus obscurus fuliginosus Ridgw. 

 Sooty Grouse. 



Canace obscura var. fuliginosa Ridgw. Bull. Essex Inst. V. Dec. 



1873, 199. 

 Dendragapus obscurus fuliginosus Ridgw. Pr. U. S. Nat. Mus. 



Vni. 188s, 355. 



[B— , C 381^, R 471a, C 559.] 

 Geog. Dist. — Northwest coast mountains, from California to 

 Sitka, east to Nevada, western Idaho, and portions of British 

 Columbia. 



