Well I guess that ducks are an option as a non bulliable friends but they can be aggressive with chickens. Pheasants are another option but they do tend to need permits. I think if you get a smaller female turkey that will be fine. But you could always move the turkey to the larger run for a few...
You could keep her with a rooster that won't put up with feather eating. That way he will correct her and she (should) eventually stop or if you are okay with this other idea, she could live in the small coop with a bigger type of poultry like a turkey that she wouldn't have an easy time...