A Boat-tailed Grackle eats an insect May 12, 2012, at Langley Air Force Base, Va. Male Grackle's are two to three inches taller than female grackle's. Both male and female Boat-tailed Grackles were spotted at Langley AFB’s 2012 Spring Bird Count. (U.S. Air Force Photo by Senior Airman Stephanie Rubi / Released)