The Great-tailed Grackle or Mexican Grackle (Quiscalus mexicanus) is a medium-sized, gregarious passerine bird native to North and South America. A member of the family Icteridae, it is one of ten extant species of grackle and is closely related to the Boat-tailed Grackle and the Slender-billed Grackle. It is sometimes referred to as a “blackbird”. It is a New World blackbird and unrelated to any of the five species of Old World blackbirds (all of which are species of the Turdus genus). Similarly, it is often called “cuervo” in areas of Mexico owing to its glossy black plumage, although it is not a member of the genus Corvus, nor even of the family Corvidae.