Greater Antillean Grackle in Jamaica.

As its name suggests, the Greater Antillean Grackle (Quiscalus niger) is almost confined to the Greater Antilles, where it occurs on all four main islands, Cuba, Jamaica, Hispaniola, and Puerto Rico, but the species is also found on the Cayman Islands. Seven subspecies are generally recognized across this range, some of them restricted to small islands, and they typically differ in the extent and color of the glossy tones to the plumage.[Neotropical Birds]

Greater Antillean Grackle in Jamaica.

The male Greater Antillean Grackle is 11 inches long, glossy black with a large rudder-like tail; the 9.4 inches long female has a smaller tail and is similar in color but less glossy than the male. The eye is yellow and is the only non-black body part. The Greater Antillean Grackle will eat anything that can fit in its mouth. They eat fruits, bread, plant matter, and small vertebrates and invertebrates. [Wikipedia]