I have 7 almost 21 week old chickens, and 3 almost 13 week old Easter Eggers. The others are 2 Buff O's, 2 Barred Rocks, 2 white rocks, and 1 red star. We have been trying to integrate these flocks for over a month. My husband built a pen within the run, so they would see each other. We would put the EE's out every day that we could considering rain/snow/cold. Even before we put them in the new pen, we would put them in the attached garden so at least they would all see each other. We tried several times to let them be together, but the older ones would always run right over to them and attack. I asked on this forum what to do, and many people said to wait until they were about the same size. Well, now they aren't quite the same, but close. I really would like to try to integrate before winter REALLY sets in here. I should mention that at night we bring the EE's in our garage, as my DH has built a pen for them in there, but they are quickly outgrowing it. today I went out to bring ALL of them some yogurt, and I had the door to the EE"S pen open as I was giving them theirs, and some of the bigger girls came right in and started to feed with them. I thought this was a good sign, but then one of my barred rocks, (the number one hen) came in and started to attack, so then they ALL started to attack. I got the others out, but thought this has to be figured out at some point. So I put ALL of the chickens in the garden(as there is more room) and my DH is out to supervise. The number one started to attack again, so I put her in the EE's "little" pen, and the others will attack if they come to close, but are otherwise leaving the EE's alone. Here are my questions: 1. should we have the EE's roost with the bigger girls tonight, and have number one hen sleep in theee's pen in the garage? 2. if so, will they wake up in the morning and kill the ee's? 3. We just put the older girls on layer feed, as they are ALL squatting, so are expecting eggs any time, so if we do put them together, what do we do about that? 4. Could putting the EE's in with them now, upset their starting to lay eggs? 5. Has anyone tried those nose rings so they cannot hurt each other? Please help, this is so frustrating, I wish I knew the answer to this! Here are some pics of the small pen, the number one chicken, and one of the EE's.