during archery i have seen and heard where the deer just stood there, but never from a gun shot.....remember to look for broken twigs, tracks, matted grass,even muddied water , where they may have crossed,etc. there are many other signs to look for other than just blood...i'm far from an expert on tracking but it's in me...fl.huntress nicknamed scooby doo ....look under grass blades and plant leaves....and dont rush the search......