720 GEOLOGICAL SURVEY OF CANADA. 
the interior in May and are not seen on the coast in the summer 
months. (Turner.) Throughout the wooded regions of Alaska, 
from the moist, heavily-wooded coast in the Sitkan and Kadiak 
regions north throughout the entire Yukon and adjoining country 
this bird is a common resident. (Nelson.) We took this species 
at Bennett, June 19th, west shore of Lake Bennett, June 24th, 
Cariboo Crossing June 26th, Lake Marsh, July 7th, and Lake Le- 
barge July 15th, but did not notice it again until we reached the 
lower Yukon, although chickadees were heard several times whose 
specific identity was not determined. Thirty miles below Holy 
Cross Mission I took two, August 25th, and at the Aphoon mouth I 
saw a small flock August 28th. Young able to fly were taken July 
7th. One taken, August 25th, had completed the moult into first 
winter plimage, while an adult taken the same day was in fresh 
plumage. (Bishop.) On the 26th October, 1898, I was hunting in 
the willow bottoms along the Hunt river north of our winter quarters 
on Kotzebue sound, Alaska, when I met with this species for the 
first time. (Grinnell.) One adult male taken at Muller bay, Alaska. 
(Anderson.) 
738. Mountain Chickadee. 
Penthestes gambelt (RIDGW). RIDGWAY. 1904. 
A commion summer resident at Banff, Rocky mountains, in 1891; 
three shot on the mountains at Deer Park, Columbia river, B.C.; 
observed two on a mountain north of the Little Miette river, Atha- 
baska pass, Rocky mountains, 1898; a common summer resident at 
Robson, B.C.; young full-grown and fledged by June 26th, 1890; 
abundant at Spence Bridge, B.C., in May, 1889; common on Sophie 
mountain at 4,400 feet altitude, on the International Boundary, 
B.C., in 1902; observed about a dozen at Penticton, B.C., in April, 
1903; common at Elko, B.C., in May, 1904, a pair building a nest in 
a hole in a live larch about fourteen feet from the ground, May gth, 
1904. (Spreadborough.) British Columbia. (Lord.) Abundant 
about the mountains of the interior; breeds. (Streator.) Wooded 
hills east of Coast range and in Rocky mountain district. (Fannin.) 
I never secured this species but am confident I saw it on the Coast 
range, B.C.; rather common around Lake Okanagan, B.C., in winter ; 
observed occasionally at Quesnel, in the Cariboo district of B.C., in 
winter. (Brooks.) Found in the interior mountains of British 
