I have 7 one year old RIR (2nd gen flock) with 6 Easter Eggers (22 wks old- 3rd gen flock) along with 18 wk olds and 2.5 yr olds (1st gen flock) other type breeds in one coop and big extended run. They coexist together and roost together since the young ones were 15 wks old. I put them...