I first trained my deer dog for tracking, then for'wounded deer'.IMO most os dogs that 'blood track' are actually just tracking off fresh deer scent, like a hound would. I started my dog out with deer drags. Then you need to kill a deer (I prefer a buck in rut that is stinking) and start dragging the hind legs. Once they trail a fresh drag, keep training them on progressively older drags. Basic obedience is a mustbeforestarting thetracking also and a treat and praise when he has progress. It is easier than you think, especially with a great dog that loves to hunt just as much as you do.