I keep them all separate, and most are in cat carriers. I have so many broody banties, that its a job and a half remembering who is where and when they are going to hatch their eggs. I open the cat carriers and allow the hens out to eat, drink and walk around a little, each morning, and make sure they are back on the nest before I go to work - they all know which is their carrier. So far, its worked ok, and I had not forgotten anyone. Thats the problem, if you put them in a different shed, and they are shut in a carrier, remembering to feed and water them!!