I have 5 little chicks that we hatched out in the incubator. They are 3 weeks old this Saturday. What harm would they come to if I put them in the same coop with two hens and a rooster? Do they need to be alone in their own coop? And I have two hens broody now, each with 9-10 eggs each, the rooster is still in the coop with them, do I have to move him before the babes come or will he be welcoming to the little peeps?