So we by default got 5 new hens that are probably over a year old. Our flock is very young, 24-34 weeks. We have them separated by a chain link panel but need to merge the to flocks so that we can feed the original birds easier and give the new ones access to the heated waterer. This gives us 14 total chickens and the coop is 48 sq ft with a 72 sq ft chain link run when we take the panel out. How long should we keep them separate? They did try to fight through the fence the first day.