what is the size of the grackle compared to the blackbird?
The Grackle, or common grackle, is a black bird about ten to twelve inches tall and are similar to blackbirds but have a longer tail and larger body. The common grackle has black body feathers and pale eyes while the juvenile has brown body feathers and dark eyes that turn yellow before their first winter.he Grackle, or common grackle, is a black bird about ten to twelve inches tall and are similar to blackbirds but have a longer tail and larger body. The common grackle has black body feathers and pale eyes while the juvenile has brown body feathers and dark eyes that turn yellow before their first winter.