APPENDIX 355 



Hab. Coast region of California, south to Monterey. Introduced 

 in Oregon, Washington, and British Columbia. 



(a) Valley partridge (Lophortyx calif ornicus vallicola). 



General appearance same as No. 14 ; said to be more grayish blue 

 or paler in color. 



Hab. Interior valleys of California and foot-hills of the Sierra 

 Nevada ; east to Panamint Mountains, south to Cape St. Lucas. 



15. Gambel's Partridge. Lophortyx gambeli. 



Top of head chestnut ; forehead black crossed by narrow white 

 line between eyes, white stripe behind the eye bordered with black 

 above ; throat black bordered with white ; upper parts and tail blue ; 

 wings with brownish tinge ; lower part buff ; abdomen black ; plume 

 black, feathers wider at ends ; bill black ; feet and legs gray. Length, 

 10 in. ; wing, 4f in. 



Female. Similar; throat dark buff; shorter crest. 



Hab. Western Texas, New Mexico, Arizona, Southern Utah and 

 Nevada, Southern California in the Colorado Valley, and southward 

 into Northwestern Mexico. 



1 6. Mountain Partridge. Oreortyx pictus. 



Top of head, sides of neck, and breast slate blue ; upper parts and 

 wings deep olive brown ; crest, long straight black feathers ; chin 

 white ; throat chestnut bordered with black and white ; middle of belly 

 white ; tail olive brown mottled with black ; bill black. Length, 10 in. ; 

 wing, 5f in. 



Female. Similar ; crest feathers shorter. 



Hab. Pacific Coast region from San Francisco Bay north to Wash- 

 ington. Introduced on Vancouver Island. 



(a) Plumed partridge (Oreortyx pictus plumiferous). 



Closely resembles No. 16 ; habits the same. 



Hab. Sierra Nevada (both slopes) east to Panamint Mountains 

 and to Mount Magruder, Nevada; south in the coast ranges from 

 San Francisco Bay to Lower California. 



(b) San Pedro partridge (Oreortyx pictus confim's). 



Another similar bird. 



San. Pedro Mountains, Lower California. 



