I let my lab run but he was very well trained and very well behaved. I taught him to retrieve ducks and doves first and then taught him to track deer later. He would track if there was enough scent to track but if that didn't work I would tell him to hunt dead and he would just search an area out. The dog had a great nose and since he was use to smelling for something as small as a dove he found it very easy to wind check for deer. With his nose he could cover more gound in 10 minutes than five guys could in an hour. Not to mention a buddy of mine shot a little one one time that got way up in a thicket and I told Bud to bring it here and he drug the deer out of the thicket by it's back leg where we could get to it