i got charged by a ruffed grouse for some reason, the other day on a smoky mountain hike up on ledge bald, don't know why since she was pretty far off trail and I heard her making some clicking noise then it lowered it's head and fluffed out her feathers and charged right out at me hissing like crazy, it sort of looked like a racoon or something for a second, after a 10 ft run at me it stopped and turned away to walk off clicking every few seconds. very wierd.