I have a mixed, free range flock of bantums, black sex link and barred rock girls with a RIR rooster. All are about 8-9 months old. I have the new girls, 6.5 week old EE sectioned off in the coop. The coop is only used to lay eggs and for the birds to sleep as I do not have a run, they free range all day. My question is at what age can I let the new girls join the new girls? I will keep the new ones in the coop for a week, hopefully more if possible. I have a prebuilt coop and it's hard to have a decent area sectioned off. My fear is that they will outgrow the area quicker than I want them too. My hope is that since I have bantums that it wont be that strange to the bigger girls that there are smaller girls. Any advice? Thanks!!