i would imagine that the turkeys would learn to agoid them if possible, but when i hunt on my uncles farm, they don' t really mind as long as you keep your distance, and when he is on his tractor or in his combine, they don' t care at all.. I guess it depends on the terrain and the situation. In farming country, they get used to the farm equipment being out in the fields and don' t mind as long as they keep their distance, usually about 100 yds from what i have seen.. they are pretty comfortable with the farm equipment..