Hi. I have an adult RIRxBR and 6 8 1/2 week old BR's in a large run (30'x23'), and inside the run I have a brooder and mini-run with 6 4 week old BR's in it. The babies are very feisty...little bandits actually. They are well feathered and already ganging up and regularly mugging the hand that feeds them. The run is only 1.5' high with a top opening. When I fill the H2O and crumble feeders they fly out, or try to. They are like little feather bombs. My question is how much longer should I keep the little monsters enclosed in the mini run? I'm in New Zealand, so the temperatures here are mild with highs around 70F and lows around 62F, maybe 60F at night. Do they need a bit more size before they have to deal with the 8 week-olds? One has curled toes that I couldn't fix. Her peers don't pick on her. How likely is it that the older chicks will? Should I just make an observed try? They are becoming more pesky about their confinement by the day. Also, is 30'x23' comfortable for 13 (soon to be) large birds? Coop: 4'x6', 4 boxes, 14' of top height perch. (hoping warm climate means they will usually only use the smallish house for roosting) Thanks!!