We have a 6 ft. tall fence, and I wish we had netting over it.  They seem to regrow their flight feathers every time we take our eyes of them for a second, requiring a new clip job which is traumatic for them and a hassle for us.  Even with one wing clipped, their urge to roost on high things gets them into interesting places: the hens can hop from the ramp going into their coop to the windowsill of the barn, to the top of the fence.  They roost up there at night.  When they wake up, one of them invariably gets down on the wrong side of the fence, which leaves her nervously clucking in puttering, trying to figure out how to get back in with her companions.  The toms, although not broad-breasted, are content with the roosting bars we've supplied them with.
We would love to give them complete free range, but our dogs wouldn't tolerate that nonsense for a minute, and I'd like to keep the turkeys out of the garden.  Maybe next year we'll build a turkey tractor.  Has anyone here tractored turkeys?  We love our chicken tractor.