My seven turkeys are about 20 weeks old, as are my "teenage chickens." My (chicken) hens are about 15 months old. They all eat and drink in the chicken house and completely fenced chicken yard, the door to the chicken yard is left open except at night or if we go out of town for an all-day trip. The seven turkeys, seven hens, and twelve adolescent chickens (both male and female) free range on 2 acres. They have "been together" for about three months. Until very recently, the hens ruled the roost. All the birds would defer to the hens, even the turkeys who are several times their size. In the last few days, there have been changes. There is an adolescent rooster who has begun mating the hens. (I haven't seen him mate the younger females, but the hens have been longing for male companionship since the flock's rooster was sent to freezer heaven for meanness. That was just before the turkeys were introduced to the flock.) About the same time, the turkeys (4 male, 3 female) have started harassing the hens, and chasing them. The turkeys work as a group. Twice that I know of they have brought a chicken down and pecked on her, en masse. One of the chickens has a mysterious leg or hip injury that may have been caused by this behavior. The turkeys seem to get quite disturbed when a chicken squats. The girls seem as bad about chasing the hens as the boys. I am very concerned. The turkeys have been banished from sleeping in the coop or run. (Fine with them, they'd rather sleep outside.) I won't pen the chickens during the day. We were planning to cull the extra roosters, but maybe I should start with the turkeys. I am more than a little depressed about this problem, as I am very fond of the turkeys and hoped to keep a couple of breeding pairs for next spring. Now I'm wondering if I should ever have gotten them in the first place. Those of you who raise them all together, what is your secret? Please tell.