I am getting some adult ducks that are already laying. What should I do about nesting boxes for them? My hen boxes are off the ground and I have the impression that ducks will want something closer to the ground??? I have heard ducks don't like to go backwards ?? so that the box needs to be big enough for them to turnaround and settle without stepping back. is this true? Also, anything I should know about ducks and chickens living together? I have about 30 hens w/ 2 roosters. Varying ages and sizes. And finally, are ducks completely vegetarian or are they omniverous like chickens. My chickens will eat any dang thing Thanks!