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.
Sparrow-sized; slightly smaller than a House Finchsparrow-sized or smaller
- Both Sexes
- Length: 4.7-5.1 in (12-13 cm)
- Weight: 0.4-0.6 oz (12-18 g)
- Wingspan: 7.5-8.7 in (19-22 cm)