We started small and 2 1/2 yrs ago got 3 chicks and 2 guineas. The chicks were from our local feed store and were a Black Sex Link, New Hampshire Red and an Americana and of course the 2 guineas. Predators got the Americana, NHR and one guinea all different in different situations..so sad but that left us with my black sex link (Blackie) and one female guinea who were BEST of friends. Never more than a few feet apart. I got 8 more chicks a year ago and everyone got along fair enough but Blackie never completely warmed up to the new girls. In August a bobcat got Guinea. As sad as that was I hoped that maybe Blackie would warm up more to the “new” girls. I have a coop that has a 10 x 10 pen attached. I put up perches in the run for all the girls to use and they all, including Blackie love them. I noticed over the warm/hot summer months the younger girls preferred to sleep in the run on the perches. I assumed it was because it was hot and they wanted more space but this past week we had our first “cold” (High 30’s-Low 40’s) night. Blackie wouldn’t let any of the other girls in the coop. I’ve tried several things but she’s not having them roost in her coop, period. They all share the nesting boxes in the coop and get along fine but when it comes to night time, that’s her house and she’s not sharing. Does anyone have any suggestions on how to get everyone living together? I also have 8 new 2 week olds that will need to join, the hopefully happy family, in the future and I’d like if I didn’t have to have a separate coop just for Blackie.