Hi there... need some advice on when to let four 5 week old Rhode Island Reds sleep in the coop with four 2 yr. old red sexlinks (Rhode Island Red/Delaware) ... I've been slowly introducing them in the run off and on and for the past 2 weeks (in a separate fenced in area in the run) ... over the past couple of days we've been watching them as they run around the run together and they seem to be getting along ok ... I don't have the space for a dog crate in the coop ... can I put them together at night now? I don't have a rooster and the older girls are fairly docile... thanks!!!!