I have not seen the answer posted anywhere to this question. I understand that Blackhead disease can be transmitted from chickens to turkeys but no one has explained how the chicks can get it so your flock becomes infected in the first place. Since the Blackhead organism is a protoza as I understand it, I would think it could not be transmitted from the hen into the egg where the chick is. In order to get it I would think the chick would have to be hatched in a nest and then pick at the adult droppings in the nest. If you are getting your chicks from a hatchery where they are incubated in incubators, they would not be exposed to any adult droppings and therefore should not be able to pick up the disease. Therefore, it should be safe to keep your chickens and turkeys together if all of the chickens come from hatcheries that use incubators and you keep your own property secure. Comments?