So, I've got 8 chickens, and I'm thinking about adding a couple of ducks. I have some questions. 1) Do ducks need a pond? 2) Do drakes crow like roosters? 3) Can they live in a chicken coop? I assume they don't roost with those webbed feet, right? 4) Do they eat the same thing, tolerate cold as well? Would I need to make major adjustments to my chicken operation, or can I just throw em in the coop with the hens??? Thanks.