The wild turkey is NOT listed under the Migratory Bird Treaty Act of 1918. So, you do not have to worry about Federal agents raiding you for buying, selling, or trading turkey feathers. Ducks, geese, and other waterfowl are a fish of another horse's color, to coin a mixed metaphor. They actually DO migrate, and you can use the feathers from any bird you legally harvest. But you cannot buy, sell, or trade in their feathers or any other parts.
You only have to worry about what your particular state has to say about it. And I am gonna say it is mightly unlikely that they have any issue with the use of wild turkey feathers.