I have about 30 assorted breed chickens in the coop. They are all about 4 1/2 months old. I am trying to introduce 6 Production Blues into the coop that are about 1 1/2 months younger. Last night I put them in a cage and placed the cage inside the coop while the main flock was roosting. This morning I let them out of the cage and the other chickens were chasing them around pecking them and they all ran back into the cage. I now have them back in the cage, inside the coop. Is there a better way to handle this? Should I just let the get chased around until the stop or should I let them catch up in size to the others. All help appreciated