CATALOGUE OF CANADIAN BIRDS. 723 
regularly distributed in families or large flocks, all the way to Fort 
Yukon, fifteen miles above which I saw a flock, August 21st. At St. 
Michael, I took a young female in first winter plumage, September 
2oth. Young able to fly were taken, July 5th, and moulting birds, 
August 13th. We took adults in full moult, June 27th, and one in 
which the moult was almost completed, July 24th. (Bishop.) At 
our winter camp,on the Kowak, Kotzebue sound, Alaska, this 
species was common up to September. After that date and up to 
the first of April, but one or two at a time were seen and then only 
at long intervals. Early in September, groups of four to seven were 
noted nearly every day in the spruces around the cabin. Those 
chickadees observed during the winter were all in the dense willow 
thickets along Hunt river. By the first of May, the chickadees 
were back again roving through the woods in pairs. Old wood- 
pecker holes were selected as nesting sites, and I spotted nests in 
process of construction by the 15th May, but through various mis- 
haps I failed to secure any eggs. (Grinnell.) 
BREEDING NoTes.—On July 22nd of this year (1903), whilst 
tramping through a large cedar swamp, I became interested in tho 
actions of a Hudsonian chickadee. I watched it for some time 
searching for insects, when suddenly it disappeared behind a small 
cedar with a larva in its bill. I did not expect to finda nest, as the 
top of the tree was green, but, on going around on the other side, 
perceived a small almost circular hole with jagged edges, about 
twelve feet from the ground. On rapping the treee, the bird left and 
became very much excited, nervously flitting back and forth from 
the nest. Cutting away a portion of the wood, I found the nest. to 
contain young a few days old, six of them, I think. The spot 
chosen for the nest-site was the best that could be found in the 
swamp, situated, as it was, on a small spruce knoll near by an ice 
cold spring which fed a small brook. The tree, as I mentioned, was. 
still green at the top, but from the nest cavity down was decayed: 
and hollow at the core. Returning some time after this, to give the 
young a chance to vacate, I found the nest to be about ten inches 
below the entrance hole, which was two inches in diameter. It was 
composed of particles of moss, lichens and strips of soft inner bark 
of the cedar, felted together with rabbit’s and deer’s hair. (L. M. 
Terrill.) 
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