Long regarded as a southern species, the Tufted Titmouse (Baeolophus bicolor) has been spreading northward in recent years. Now, these tame, confiding birds are familiar visitors at feeders from Michigan to New England. Their ringing song varies; usually, it is a rapid two-note whistle—pe-ter, pe-ter.
Titmice are relatives of chickadees, and this species has a number of chickadee-like calls. In the West, the Oak Titmouse (Parus inornatus), which lacks the buffy flanks of the Tufted, actually does call tsick-a-dee-dee.