I have 5 Bronze turkeys in with my flock of 36 layers and they get along fine. It is a riot to watch them interact at times, the turkey hens nesting on small chicken boxes, and the little (RIR) hens in a big ol turkey nest box. I heard about the mereks and blackhead disease but it has not been an issue here. If your chickens are healthy and the ground is healthy I would try it, it is definately worth it IMHO. Just today went to check eggs and a T hen was taking up a C hens favorite box, and the chicken jumped on top of the turkey and proceeded to try to nest on it. Also I have found the turkeys to be totally awake at night, and have had a turkey attack the cat who followed me into the covered run to check after I heard a ruckous at 11pm. (a few of the turkeys like to sleep outside.) So I would think they would be a good watch dog so to speak for the chickens. And they have melded into the chicken pecking order as well, as the top hens and roosters eat with two of the hens and the tom, and if a lower chicken tries to eat with them they get pecked by atleast one chicken and a turkey will have to get it's two sense in there, even if a lower T hen tries to eat with them the alpha chickens will peck at her to mind her manners. So a turkey being violent towards the chickens should not be an issue, if properly introduced to each other. A few weeks ago I took one tom and dressed he was 35 pounds, so these are by far not small turkeys. Hope this helps.