Scientific name: Poecile atricapilla
The Black-capped Chickadee is familiar to most U.S. residents who live from Kansas northward, but those to the south instead see Carolina Chickadees. Black-capped Chickadees often form the nucleus of a mixed-species foraging flock, and other bird species have learned the meaning of chickadee alarm calls that signal when danger is near.
The familiar chick-a-dee-dee-dee alarm call is not the bird's song. Roger Tory Peterson once described this species' song as 'fee-bee', with the first note higher. To the novice birder, however, hearing this song without seeing the bird may cause one to think they have found an Eastern Phoebe!