If you free range and you are near a woodline, you can expect that your hens can and will be bred with wild toms. Not sure if they would go wild at this point, not real likely, but they will have little half breeds following them around. My sis had this happen. The sad part about free ranging turkeys in this kind of setting is that they usually establish a brood nest in the woods and are a prime target for foxes and coyotes. They just usually don't have the wild instincts to survive and raise a brood in the woods.