My chicks are 2 weeks apart: almost 6 weeks and almost 4 weeks. It's going OK. There's some chasing by the bigger ones, but not bad. I have 2 heat lamps in the coop. I originally would have liked them all to sleep together in the brooder/warmer area, but one group sleeps in the brooder and the other seems to want to sleep outside the brooder under the other heat lamp. I'm not crazy about the separation between the ages and have been putting them all together to sleep in the brooder area. Should I continue to do this or should I just let them sleep where they feel like it? Some of the older ones look like they are planning to roost, but there's no heat lamp available there. I'm getting slightly tired of playing chicken games and am ready to just let them do what they want to do. Is that a good idea? Am I micromanaging, LOL??