This species measures 16–21 cm [6.3–8.3 in] long. Eastern bluebirds are found east of the Rockies, southern Canada to the Gulf states, and southeastern Arizona to Nicaragua.
The bright-blue breeding plumage of the male, easily observed on a wire or open perch, makes this species a favorite of birders.
About two-thirds of the diet of an adult consists of insects and other invertebrates. The remainder of the bird’s diet made up of wild fruits or berries. Favored insect foods include grasshoppers, crickets, katydids, and beetles. Other food items include earthworms, spiders, millipedes, centipedes, sow bugs, and snails.