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...