Looks like Toby is play hunting. Dogs will know when it is time for serious hunting. When I'm out hunting, about an hour into it (when its slowing down), I let my dog go out and play hunt shorebirds. She enjoys it alot and it gives us time for a break. She will point shorebirds and react when they start to run.

Sometimes she'll run in a field others have already walked, and they'll search for the birds she's pointing. Kind of funny to watch; imagine walking in field and right behind you a dog comes bursting out from nowhere and starts pointing!

After breaktime (15-20 mins), I'll call my dog and she will start hunting again ignoring the shorebirds. In the afternoon, when hunting becomes hard (entire field has been covered by hunters), she'll mess around with field mice.