1918] Grinnell: The Subspecies of the Mountain Chickadee 511 
California: Modoe County: Sugar Hill, 4; Warner Mts., 27. Siskiyou County: 
Mt. Shasta, 3; Jackson Lake, 5900 ft., 5; South Fork Salmon River, 5000 ft., 1; 
head of Rush Creek, 6400 ft., 2; Kangaroo Creek, 3; Castle Lake, 5400 ft., 1; Horse 
Creek, Siskiyou Mts., 11; Beswick, 1. Trinity County: head of Bear Creek, 6400 
ft., 4; head of Grizzly Creek, 6000 ft., 6. Tehama County: near South Yolla Bolly 
Mt., 4. Mendocino County: near Castle Peak, 1; near Sanhedrin Mt., 4. Lassen 
County: Eagle Lake, 6. Plumas County: Meadow Valley, 1. Nevada County: 
Independence Lake, 3. Placer County: Summit, 1; Cisco, 6000 ft., 18; Blue Can- 
yon, 4700-5000 ft., 12; Dutch Flat, 1. Eldorado County: Tahoe Valley, 2; Kyburz 
Station, 1. Mariposa County: vicinity of Yosemite Valley, 13. Mono County: 
Warren Fork of Leevining Creek, 9200 ft., 1; Williams Butte, 7500 ft., 1. Fresno 
County: Bullfrog Lake, 10,600 ft., 6. Inyo County (not typical): near Kearsarge 
Pass at 8500 ft., 1; Little Onion Valley, 7500 ft., near Kearsarge Pass, 1; Cotton- 
wood Lakes, 11,000 ft., 7. Tulare County (not typical): Whitney Creek, 11,000 
"ft., 3; Whitney Meadows, 9800 ft., 14; Olancha Peak, 10,000 ft., 1. 
Nevada: Pine Forest Mts., Humboldt County, 13. 
Penthestes gambeli baileyae (Grinnell) 
Bailey Mountain Chickadee 
Parus montanus, of authors, part. 
Parus gambeli, of authors, part. 
Parus gambeli baileyae Grinnell (1908, p. 29). 
Penthestes gambeli baileyae, American Ornithologists’ Union Committee 
(1910, p. 351), part (?); and of authors, 
Type locality—Mount Wilson, 5500 feet altitude, San Gabriel 
Mountains, Los Angeles County, California. Type in coll. J. Grinnell. 
Diagnosis —Tone of coloration on sides, flanks and back distinctly 
““smoke gray’’ of 
plumbeous—more exactly, on sides and flanks the 
Ridgway (1912, pl. 46), and on back near the 
same authority (pl. 51). The tail in this race is short as in abbrevi- 
ce 
mouse gray’’ of the 
atus, but the bill is long and heavy, averaging thicker through than 
in any of the other three races. 
Measurements.—Average of 14 males: Wing, 70.0 mm.; tail, 65.4; 
exposed culmen, 8.5; depth of bill at base, 4.1. For extremes, see 
accompanying table. 
Range.—Higher mountains of southern California, from the 
extreme southern Sierra Nevada in Tulare County, and the Santa 
Lucia Mountains in Monterey County, south to the Cuyamaca Moun- 
tains, San Diego County; also (probably this subspecies) in the San 
Pedro Martir Mountains, in northern Lower California. Specimens 
examined, 160, from the following localities, all in California: 
