I have about an acre pond, and I was thinking about getting a few ducks here in Northern CT. There is always some open water on one end of the pond where there are springs and a small creek. I am not sure what kind of ducks, maybe muscovys or Khaki Campells. I wanted to experiment with them about controlling pests in the garden. I might use them for some meat and eggs as well, though I have chickens for eggs. If they "free range" on the pond: 1. What kind of housing, if any, might they need. Could they survive without housing? 2. What might they need in the way of feed?