Look at that tail! Let’s see–at the beach, in Texas, long wonky tail, must be a Boat-tailed Grackle. I can usually tell the difference between the Boat-tailed and Great-tailed Grackle not by size, and the tail of a Great-tailed Grackle is a crazy thing to behold, but by voice and habitat. The Boat-tailed Grackle is a beach-loving surfer dude (Ok, I made up the surfer dude part, but they are coastal). While the Great-tailed Grackle is more inland. Their ranges do overlap though. The real key for me as to which is which, is their voices. They could not be more different. The Boat-tailed Grackle has a pretty ringing sort of call (and will always remind me of Florida for some reason)while the Great-tailed Grackle’s voice is harsh and sounds like for all the world like crumpling a wad of paper. Seriously.