Boat-tailed Grackle

The male Boat-tailed Grackle is 42 cm (17 in) long. Adult males have entirely iridescent black plumage, a long dark bill, a pale yellowish or brown iris and a long keel-shaped tail. The 37 cm (15 in) long adult female is shorter tailed and tawny-brown in colour apart from the darker wings and tail. Young males are black but lack the adult's iridescence. Immature females are duller versions of the adult female and have blotches or spots on the breast.