A vocal, gregarious inhabitant of many habitats, although avoids dense woods; often found near human habitation. Note the glossy purple-black plumage, medium-length squared tail, and somewhat thick bill. Similar species include Shiny Cowbird, Red-shouldered Blackbird, and Greater Antillean Grackle. The male Shiny Cowbird is smaller, shorter-billed, and has even glossier plumage than the Cuban Blackbird. The Greater Antillean Grackle has pale (not dark) eyes, a narrower bill and a longer tail. The female Red-shouldered Blackbird is a bit smaller with a narrower bill, and is less glossy. Vocalizations include “schee-o” and a loud “chuck,” both metallic and given singly or in series. Also common is a “chok, chok, chok, lee, lee, lee.”