That reminded me of two guys I ran into in southern Iowa back in the very best days. They had WI plates on their truck and came all that way with some kind of German Shepherd cross - one dog only. I watched them work the cover and stopped and talked with them when they came to their truck. It was clear they knew what they were doing and the dog was darned good too. In fact I think the dog was what caused them to drive that far to hunt birds.