I read the threads from the old timers here on BYC. And yes, they have a separate enclosure. I have an old rabbit hutch that I used as a brooder when I first got my chicks. I've kept that in case I ever have a sick bird or want to add to the flock. Do you have an old dog house? A lot of people on here can get pretty creative. I saw one that used an old entertainment cabinet.Thanks to everyone for the advice! I've built a good sized coop, but I'm not sure where I could house three chickens seperately for 30 days. What do people typically do in this situation? I don't think a partition would be an awesome germ barrier. Do folks keep a smaller enclosure for situations like this?