I have a small flock of 4 hens that were born on June 25 of this year. The flock contains a barred rock, buff Orpington, ameraucana and golden comet. I just brought two blue wyandottes home from the same breeder that were born three days after my original 4, but the new hens seem smaller. She still had them in a small stack of cages. The original flock has been together for one month and I noticed that the new birds are getting pecked at so I sectioned off an area of their run with hardware cloth. Hopefully this will prevent them from fighting. Any ideas on how I can peacefully add the two new hens to the original four?