I'm not sure it this is where I should post this question or not. But anyway.... I would like to breed three different flocks. I currently have Black Copper Marans (chicks) and Plymouth Barred Rock hens and Rhode Island Red roosters. What I would like to do after I get a Barred Rock rooster, is to separate my birds by breed and produce BCM, Barred Rocks and Black Sex links. Here is the question finally, how do I build breeding pens and how may birds show I include in each pen. I don't want a huge number of individual pens due to costs and watering issues. Any suggestions? I currently have one coop and three different runs. What is a cheap way to do this? Thanks for any suggestions!