INYO CHICKADEE 367 



East to eastern Montana (Fort Custer and Red Lodge) ; eastern Wy- 

 oming (Wheatland and Laramie) ; Colorado (Golden, Pikes Peak, and 

 Fort Garland) ; New Mexico (Willis and Capitan Mountain) ; and 

 western Texas (Davis Mountains). South to southwestern Texas 

 (Davis Mountains) ; southwestern New Mexico (Pinos Altos Moun- 

 tain) ; southern Arizona (Santa Catalina Mountains) ; and northern 

 Baja California (San Pedro Martir Mountains). West to Baja CaU- 

 fornia (San Pedro Martir Mountains and Sierra Jw^rez) ; central 

 California (Barley Flats, Big Trees, Marysville, and Weed) ; Oregon 

 (Pinehurst and Fort Klamath); Washington (Mount Rainier and 

 Spokane) ; and British Columbia (Summerland and Atlin). 



The range as outlined is for the entire species, which has been sepa- 

 rated into at least six subspecies. The typical mountain chickadee 

 (Parus g. gamheli) is found in the Rocky Mountain region from Wyo- 

 ming and Montana south to western Texas, New Mexico, and Arizona ; 

 Grinnell's chickadee (P. g. gn'nnelli) occupies the northern parts of the 

 range from British Columbia south to central Oregon and northern 

 Idaho; the short-tailed chickadee (P. g. abhreviatus) is found from 

 soutliern Oregon south to central California and northwestern Nevada; 

 Bailey's chickadee (P. g. haileyae) is found in the higher mountains of 

 southern California; the San Pedro Chickadee (P. g. atratus) is found 

 in the mountains of northern Baja California; and the Inyo chickadee 

 (P. g. inyoensis) occupies the mountain areas of eastern California 

 chiefly in Mono and Inyo Counties. 



Egg dates. — California: 82 records. May 4 to July 11; 42 records. 

 May 22 to June 13, indicating the height of the season. 



Colorado: 33 records, April 5 to June 23; 17 records, June 3 to 11. 



Oregon: 15 records. May 20 to June 12; 8 records, May 30 to 

 June 6. 



PARUS GAMBELI INYOENSIS (Giinnell) 

 INYO CHICKADEE 



This is a pale race of the white-browed, or mountain, chickadees 

 found in the more arid mountain regions of eastern California. Dr. 

 Grinnell (1918) describes it as "the palest colored race of the four; 

 sides, flanks and back, in unworn plumage, pervaded with pale bufif — 

 the 'cartridge hufi' of Ridgway (1912, pi. 30). Wear or fading, or 

 both, removes most of this buflf tone, so that the resulting effect, in 

 spring and summer birds, is of an ashy tone of coloration, distinctly 

 lighter than in any of the other three subspecies, in same stage. It 

 seems probable that there is a paler tone to the underlying plumage 



