I did a lot of research for one of my novels about early 1700's in the NC mountains. The Cherokee and the early settlers cooked turkeys in the ground. After killing a turkey, they dug a hole and built a fire in it. Let it burn to coals. Keep adding wood until you have a good bed of coals. They coated the skinned bird in mud from a creek or mud they made with water they carried. Put him on the coals, put some coals around and on top of him, then cover the hole with dirt, but not so much that air can't get in. I don't know how long it cooked, but when it was done, they washed it off and enjoyedu a hearty meal.
The process is incosistent with tagging and checking turkeys in most states, but if your'e going to eat it, what the heck.