Crazy flight is when a Ruffed Grouse flies at top speeds for great distances. It occurs specifically around summer’s transition into autumn, right as leaves begin to fall. First-year grouse in particular exhibit this behavior. Grouse can be seen making huge flights across highways, big open fields, and even into metropolitan areas like New York City. During many of these events, these birds end up going headfirst into windows, a threat to birds in general. However, this specific behavior and the speed associated with it make it both deadly and destructive.