If he's having trouble, I know in New York, there's a help line for dog trackers like "find-a-deer", whatever. They'll come out at no expense to the hunter cause they get paid by the state, to come out and help him find the deer. Sure, you tip him and your happy as hell for his assistance, but I know a couple of guys who called, showed em where he was shot and the last blood trail, and off went the dog and found him. If it's his 1st one, it'd be worth the call if he loses the trail.