Every time I turn around the ducks are like QUACK QUACK QUACK QUACK. I highly doubt they're imprinted on me because they're all pretty skittish and run from me . But seriously they are WAY too loud...we have already gotten complaints from neighbors. They seem to be quacking for no reason . Is there any way I can quiet them down. Treats don't seem to help. Edited to add: They have free range of the backyard but seem to just quack for no reason.