[color:#FF0000]PLEASE NOTE:[/color]
IN ADDITION to the minimal "big game" hunting license most turkey hunters would legally be carrying to turkey hunt with a modern shotgun --------
You need a MUZZLELOADER permit, just like you would for hunting deer with a muzzleloader.
Reason I bring this up is because many turkey hunters (who do not buy a Sportsman License) may normally wait until Fall to purchase their "muzzleloader" permit, maybe having never considered it was a requirement for Spring Turkey hunting should you use a muzzleloading shotgun.
(Your past deer season's muzzleloader permit has expired as of 02-28-2011.)
If you kill a turkey with your muzzleloading shotgun (and don't possess a muzzleloader permit, sportsman, or lifetime license), then your harvested turkey would be an illegally taken bird. Possession of an illegal turkey could put you in deep doodoo.
Likewise, if you plan to use your bow (or crossbow) for turkey hunting, be sure you've purchased your "archery" permit.