I have 4 different breeds of eggs in the bator now and if all goes well would like to keep 2 hens and a rooster of each breed and give away or sell the rest. I don't have room to set up 4 seperate pens, so I was wondering if I could use one pen to keep the girls in and another to keep the boys in. Then when I wanted a rooster to breed the hens I could pull one out and place with the hens (How long would he need to be in there?). When he was done I could just take him back out and place him back in with the boys. Would this work or would the boys all start fighting when I put the one that I had taken out back in with the rest of the boys?