Turkeys can be downright nasty. I find that, if they all have enough space to get away from each other, they usually don't hurt each other. The turkeys have free range. It makes them a lot nicer and less likely to kill each other or any other birds. Turkeys need a lot more space than most folks think they do. A whole lot more, for the heritage ones. They practically need a pasture.
The broad breasted turkeys are weird, I dislike them because they are so fragile and can't really mate, they break bones just hopping a foot down, but the heritage ones will fly onto your roof, or the neighbor's roof. I still love my turkeys, though.