So I have 5 four week old chicks I think 2 of them may be Roos so I want to get 2-3 more babies because, chicken math. I can’t have roos in city limits so I have a friend that will take them and I know the younger they are the easier to integrate them. My bigger ones are in the run most of the day and brought in at night. But if I get little baby they need to be at a different temp so I’m not really sure how to let them get to know each other. Suggestions?