Welllll....I've never had turkeys....but the chickens freak out at new things, loud things, just about everything. The lawn mower...OMG I thought they were going to kill themselves flying against the run the first time it came near. But after they realized fresh cut greens come in the run when the mower goes by, they all run up to the run wall when they hear it. Metal work can be loud, and nail shots, yeah....not sure if putting them in the run would be enough, and might have to acclimate them to the new place...and then the noises for a few days before you could go back at it full bore. Not much help, sorry, have to be your judgement call.