We have 12 free range hens of various breeds in our flock that are about nine months old. We have just adopted two more of the same age from friends who were losing chickens to coyotes. He have these two in an enclosed area where the free range hens and the dogs can get used to them. I'm thinking we will do this for about a week before introducing them. There have been a few skirmishes through the wire- one of the new ones was bleeding on her nose. These two hens came from a flock that also had two roosters and they are offering us a rooster if we would like as well (which we have been recently considering). When you introduce a rooster, do you also keep it separate for a week or so like you would a hen? Would it help the two new hens integrate into the flock if we also had a rooster that already knows these hens? Also, our dogs have been really good with the hens and protect them. Has anyone had experience where a dog that gets along good with hens does not get along with a rooster? Thank you for any input!