One more while I'm thinking.. Use all your senses when looking for a downed animal.

Don't discount smells...My Rifle Buck last year I shot in the heart with a 6mm it was a frontal shot (brisket quartering towards me) I knew I could make the shot and did, 84 yards off hand from tree stand in thick Timber.

At the shot, all I knew was the deer disappeared..I thought he dropped right there. But once I got to the spot..no deer? The relatively small caliber (basically a .243) did not exit. All bleeding was interior. No trail, no trace, no blood. Once I started looking around the area and not finding anything I got anxious. Then I smelled it..the smell of dead deer..blood smelling.. I found him 20 yards away, piled up in a tree top. If I was just to search for blood specs that simple "track job" could have taken hours.