I just got 6 Buff O's on Monday. This is my first time raising chicks and I love them. Now I want more. Is that bad? How many is too many? I want to get a few easter eggers now. Can they be put together with my BO if they are the same size? I could seperate them easily if need be. Do breeds fight other breeds? Are EE's cold hardy? Our coop will be insulated w/ electricity etc. 8x8x8h. Am I jumping the gun? Sorry for alll these questions. ETA: The BO's were born on 4/28.