You will never know if the dog will track wounded animals until you try them. My old yellow lab would not track a wounded animal. If you took her into the woods for that reason, she just started casting around,looking for grouse. I don't blame her, it was all she knew and was trained to do.

My current black lab is a whole different critter. You take him to where you hit the animal and point out the blood, guts, what ever you got, and tell him to go get it, and he will go and find it. It's something he just seemed to know what to do. Of course this devil I swear can read my mind sometimes. We've also came across blood trails when grouse hunting and just for fun I let him track it down. We came over a hill and found a place where wolves had pulled down a wounded fawn deer. Needless to say we got out of that area real fast as wolves do not like dogs in their area and will run them down and kill them on sight.