There is an actual color phase of wild turkey called smoke grey phase, it is not a domestic bird it is caused by a lack of melanin pigmentation ..........I know for fact that the birds in my area are wild smoke grey phase because there are no domesticated turkeys for at least 50 miles that would have those color markings. Whether or not the bird in that pic is domesticated it is pretty much accepted by wildlife biologists that wild and domesticated birds will not tolerate each other and it is unlikely that a domestic bird would go feral and join a truly wild flock.