I have a small flock of 6 hens and 1 rooster that are approx 8-10 weeks old and they have been together since they were 1 week old. This past weekend I brought home the addl Buff chicks that were the same age 8-10 weeks. I had read on here they are more likely to get along better if approx the same age and size. Anyway from day one the rooster of the original flock kept the three new Buffs away from the other hens...he would run them off whenever they came in close proximity to eat, drink, huddle together. 3rd day, I watched the rooster attack one of the new Buffs so hard that he totally knocked her off her feet. I proceeded to catch the roo and carry him around with me for 20 minutes or so then placed him alone back in the cage where he had spent his first weeks. I did bring him in the house so he was totally separated from the rest of the flock. My question is, am I handling this correctly? If not will he stop being a bully if I return him to the flock?