Anna Ranieri
Crowing
If my 8 ducks don't destroy .15 acre, I can't see how your guys would destroy an acre. Yes, they may have a spot or two where they may eat back some, but it won't be bad. There is a pond near our house where there are like 8-10 ducks, mixed batch, large adults. The grass there remains green, and those guys are active.
If you had 20 ducks, maybe I would be worried. But I don't think you should be worried about your little group.
