Large, long-tailed blackbird, the Boat-tailed Grackle is found exclusively along the Gulf and Atlantic coasts of the United States. Males are iridescent purple-black over entire body, wings and tail more greenish. Females are 1/2 the size of males. Back and head cinnamon brown. Breast and belly paler brown or buffy. Tail and wings dark brown. Pale brown line above eye contrasts slightly with indistinct dark line through eye.
Freshwater and salt marshes, open upland habitats, cities, and agricultural fields, usually near the coast. Nests in marshes.