A gregarious, noisy inhabitant of many habitats, except dense woodlands; often near human habitation. Adults are clothed in glossy black, have a white eye, very long keel-shaped tail; youngsters are dull brownish in plumage, darker eyed and have a shorter tail. Only the Smooth-billed Ani is similar in color, size, and proportions, but its beak is much heftier than that of the Greater Antillean Grackle. Cuban Blackbird shares color and size, but has a shorter tail without a keel, and a dark eye. Vocalizations are varied but most have a “squeaking rusty hinge” quality; also gives a harsh “chack.”