There have been a few times that other gobblers ganged up on the tom I'd just shot, sometimes leaving only to return a few minutes later to give him another good flogging. That showed me that a shotgun blast is not something that ruins the area for turkey hunting. With oil wells back-firing, farm equipment, vehicles on the road, thunder, etc. I'm not sure that turkeys can identify a shotgun blast from other noises. I'd just stay put and keep calling, looking for gobblers to be sneaking in.