We have 4 RIR hens and 1 RIR rooster. We are introducing 2 new hens to the flock today . The new hens are older and laying, and we are getting them so that they will help our current hens figure things out as they grow up Any tricks or advice on introducing new hens? Just let them figure out the pecking order? Or do we need to do anything to make the transition easy for the existing flock and the new birds? Thanks!!