There are three types of grackles in North America. The Common Grackle is seen throughout the continent, the Boat-tailed Grackle is seen in the southeastern States and into the Eastern areas of Texas. The Great-tailed Grackle is found along the southern borders of Texas and into Mexico.
Grackles have a wide range of colour including, browns, dark blues, dark greens to blacks. These colours depend on the maturity and sex of the birds as well, whether it is in breeding or non-breeding plumage. The plumage is quite iridescent when they are in their breeding plumage.
Although somewhat different than ravens, crows and blackbirds, they are associated with the members of the blackbird group. These large birds are recognized by their long bills and long tails. They are not wary of people and are found visiting birdfeeders wherever they find them and inhabit most towns and cities. Grackles are not known for their songs but for having loud scratchy voices and squawking cries.