Hello all you chicken lovers out there. I have a question for you. I have 9 RIR and 1 RIR roo. They all live nicely in a large A frame chicken pen. I have then because I enjoy them and I sell their eggs. Lately I have had so many people want eggs that I was wanting to get more chickens, maybe some EE for the blue eggs. Can and how do I do this? I have a cage that I could keep the new chickens in until they got closer to the size of my RIR. Will they mix okay or will they fight? The RIR do come out of the pen and roam around the yard most days. Any advice would be great. Thanks a lot and Happy Holidays!