I'm in the final stages of adding 2 new hens to my flock of 5 hens. For two weeks now they have been separated by a fence. The newbies have their own coop in the back part of my existing chicken run. My golden comet has been extremely aggressive with the newcomers; puffing up on them like a tom turkey and pecking them through the fence. Should I wait until she completely stops showing aggression to the new ones before letting them run together? Or is this just normal top hen behavior and will it continue as long as the fence is between them? Anything else I should do?