Others have made a lot of good comments. The bear's fur soaks up a lot of blood and the fat closes the hole some. You would want to be looking at the brush, not just on the ground. At narrow spots on the trail, look forblood smears at about afoot or so high. (Height of the exit woulkd). Once you note the side the blood is on and the height it will help in locating these blood smears on the trail. He'll likely head down hill, toward water ora creek. Deffinately toward something thick! If he crosses a creek, note if he trys to pack himself with mud. If you loose the blood trail, you may find it again on brush in an area where he has to exert himeself. Again,on the side/height of the exit wound. Good luck, hope you find him. Rick