354 APPENDIX 



12. Sage Grouse. Centroccrcus urophasianus. 



Top of head and neck grayish buff, barred with black ; chin, throat, 

 and cheeks white ; throat spotted with black ; upper parts light brown 

 or gray, barred with black, dark brown, and gray ; tail longer than 

 prairie grouse, twenty feathers graduated to a point ; chest gray, barred 

 with blackish brown; bill black. Length, 28 in.; wing, 13 in. 

 Weight, 5 to 8 pounds. 



Female. Similar, but much smaller. 



Hab. Sage regions of the Rocky Mountain plateau, and westward, 

 chiefly within the United States, but north to Assiniboia and the dry 

 interior of British Columbia ; east to North Dakota, South Dakota, 

 Nebraska, and Colorado ; south to Northern New Mexico, Utah, and 

 Nevada ; west in California, Oregon, and Washington to the Sierra 

 Nevada and Cascade Range. 



13. Scaled Partridge. Callipepla squamata. 



General color slate blue, feathers bordered with black, giving the 

 bird the scaled appearance which suggested name. Head brown or 

 brownish gray ; top of crest white, throat pale buff, hind neck and 

 upper parts of back and breast slate blue ; wings and back pale 

 brown ; bill black. Length, g% in. ; wing, 5 in. 



Female. The same. 



Hab. Table-lands of Mexico, from the Valley of Mexico north to 

 Central and Western Texas, Santa F6, New Mexico, and Southern 

 Arizona. 



(a) Chestnut-bellied scaled partridge (Callipepla squamata castanei- 



gastra). 



Similar to No. 16, except more or less extensive patch of chestnut 

 on belly. 



Hab. Northeastern Mexico and lower Rio Grande Valley. 



14. California Partridge. Lophortyx californicus, 



General color blue ; crest black, narrow at base, wider at end ; fore- 

 head buff ; occiput dark chestnut, bordered on sides with black, fol- 

 lowed by white line ; line from bill to eye white ; chin and throat black 

 bordered with white ; back of neck, breast, and upper back blue ; belly 

 buff; abdomen chestnut ; bill black. Length, 10 in. ; wing, 4$ in. 



Female. Similar, not so handsome ; crest shorter and brown ; 

 colors more subdued. 



