I'm no expert on turkeys but I'd start out by putting them outside on the nicer days only to get the birds acclimated to the outdoors. Once you're sure that they are doing well leave them out for longer periods (maybe over night). And then go from there.
I'm fairly new to turkeys. Last week we brought a brooding hen into the house when the other hen turkeys ruined the nest and scattered the eggs around the coop. Today the eggs have begun to hatch. We plan to keep the hen turkey and the poults in the house for awhile, but are wondering at what...