I/O CHECK-LIST OF NORTH AMERICAN BIRDS. 



[B - C - R - C -.] 



HAD. Interior valleys and foot-hills of the Pacific Province, south 

 to Cape St. Lucas. 



295. Callipepla gambeli (NUTTALL). 



Gambel's Partridge. 



Lophortyx gambeli " NUTTALL," GAMB. Pr. Ac. Nat. Sci. Phiia. 



1843, 260. 

 Callipepla gambeli GOULD, Mon. Odont. 1850, pi. xvii. 



[B 475, C 392, R 483, C 576.] 



HAB. Western Texas, New Mexico, Southern Utah, Arizona, Lower 

 Colorado Valley, and southward into Western Mexico. 



GENUS CYRTONYX GOULD. 



Cyrtonyx GOULD, Mon. Odont. 1850, 14. Type, Ortyx massena LESS. 

 = O. montczuiita: VIG. 



29G. Cyrtonyx montezumse (Vic.). 



Massena Partridge. 



Ortyx montczumce VIGORS, Zool. Journ. V. 1830, 275. 

 Cyrtonyx jiiontczujucE STEJX. Auk, II. Jan. 1885, 46. 



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



HAB. Northwestern Texas, New Mexico, Arizona, and Northwest- 

 ern Mexico. 





 SUBFAMILY TETRAONIN2E. GROUSE. 



GENUS DENDRAGAFUS ELLIOT. 



SUBGENUS DENDRAGAPUS. 



Dendr(iapits ELLIOT, Pr. Ac. Nat. Sci. Phila. 1864, 23. Type, Tetrao 

 obscurus SAY. 



297. Dendragapus obscurus (SAY). 



Dusky Grouse. 



Tetrao obscurns SAY, LONG'S Exp. II. 1823, 14. 



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



