what's the behavior behind wing flapping? Every morning my muscovies flap and flap and flap. Sometimes I think they're trying to get meatie bird funk off of them (since they were bought as meat birds, I raised them with the meat chickens...but i think the ducks are going to stay). Sometimes i think they enjoy being leaf blowers--their flaps are quite powerful! But, I'm sure there's some bird logic going on. Any ideas?