Indigo Bunting

Indigo Buntings are small (roughly sparrow-sized), stocky birds with short tails and short, thick, conical bills. In flight, the birds appear plump with short, rounded tails.
A breeding male Indigo Bunting is blue all over, with slightly richer blue on his head and a shiny, silver-gray bill. Females are basically brown, with faint streaking on the breast, a whitish throat, and sometimes a touch of blue on the wings, tail, or rump. Immature males are patchy blue and brown.