ALASKA CHICKADEE.
739. Penthestes cinctus alascensis. 5 inches.
Range.—Alaska and eastern Siberia. One would naturally think that these little animated bunches of feathers would freeze in the far north where they make their homes. But they are the same sprightly little “chick-a-dee-dee-dee” that we have farther south, and do not seem to mind the severe cold at all. In habits, nest and eggs, these birds are so near alike that it is impossible to identify them.
HUDSONIAN CHICKADEE.
740. Penthestes hudsonicus. 5 inches.
Range.—Western half of British America. Habits the same as above.
CHESTNUT-BACKED CHICKADEE.
741. Penthestes rufescens. 5 inches.
Range.—Alaska to Oregon on the Pacific coast, and occasionally to central California. Habits the same as preceding.