My club has just asked us to differentiate between stocked and wild trout in our catch returns. I've never really bothered before as I don't kill any river trout I catch. I've always assumed that stocked trout have no or very few red spots, but using this recognition I seem to be catching many times more stocked fish from the same stretch that the majority of fish caught are reported wild. The only thing I can think of is that I am thinking fish with very few red spots are stocked, whereas others regard them as wild. Another thing is that many of the fish are about the same size, whereas I would have thought wild trout would vary considerably in size. Other differences such as shape of mouth and markings on the fins seem to be much more subtle to detect, especially as I normally unhook trout in the water without touching it by grasping the fly and giving it a quick twist. So does anyone have any comparative pictures of stockies vs wild?