1918 Grinnell: The Subspecies of the Mountain Chickadee 509 
British Columbia: South fork of Moose River, 1. 
Montana: Gallatin County: Jefferson River, 1; Madison River, 2; Hillsdale, 2; 
Mystic Lake, 1; Dry Creek, 1. 
Idaho: Sawtooth Lake, 1. 
Wyoming: Mammoth Hot Springs, 3; Jackey’s Creek, 4 miles southwest of 
Dubois, 1; Teton Pass, 7200 ft., 2; Salt River Mts., head of Dry Creek, 9200 ft., 1; 
Medicine Bow Mts., 10,200 ft., 1; Medicine Bow Creek, 1. 
Utah: Filmore, 1. 
Colorado: Loveland, 1; Middle Park, 1; Sangre de Christo Pass, 1; Fort Gar- 
land, 1; Platte Canyon, 1; Pueblo, 2; Estes Park, 1; Boulder, 2; Gold Hill, 1; 
Golden, 7300 ft., 1; Colorado Springs, 5; Querida, Custer County, 1; Salida, 
Chaffee County, 1; Crested Butte, Gunnison County, 1; Stamford, 1. 
Texas: Guadalupe Mts., 6800 ft., 1; Davis Mts., 1. 
New Mexico: Fort Massachusetts, 1; Fort Wingate, 1; Albuquerque, 1; Taos 
Mts., 8800 ft., 1; Manzano Mts., 4; Magdalena Mts., 7000 ft., 1; Cienequilla, 1; 
Mt. Capitan, 1; Pecos Baldy, 1; Bear Spring Mts., 1; Shiprock, 1; Corona, 1; 
Twining, 12,500 ft., 1; Fulton, 1; San Mateo Mts., 9500 ft., 1. 
Arizona: Fort Whipple, 1; Mt. Graham, 1; San Francisco Mt., 2; Bright 
Angel Spring, Kaibab Plateau, 1; Canyon Spring, 1; Santa Catalina Mts., 2; 
Sierra Ancha, 6500 ft., 1. 
Penthestes gambeli inyoensis, new subspecies 
Inyo Mountain Chickadee 
Parus gambeli, of authors, part. 
Penthestes gambeli, of authors, part. 
Penthestes gambeli baileyae, American Ornithologists’ Union Committee 
(1910, p. 351), part (?). 
Type locality—Panamint Mountains (northern part), 3 miles 
east of Jackass Spring, 6200 feet altitude, Inyo County, California. 
Type, male adult, no. 28782, Mus. Vert. Zool.; October 7, 1917; col- 
lected by J. Grinnell, orig. no. 4588. 
Diagnosis —The palest colored race of the four; sides, flanks and 
‘cartridge 
back, in unworn plumage, pervaded with pale buff—the 
buff’? of Ridgway (1912, pl. 30). Wear or fading, or both, removes 
most of this buff tone, so that the resulting effect, in spring and sum- 
mer 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 parts and that 
this becomes revealed by loss of the superficial pigment-bearing por- 
tions through the gradual progress of feather abrasion. Inyoensis 
shows nearly as long a tail as does gambeli. Its bill is somewhat 
smaller. 
