I think most any dog would have the ability to follow a blood trail. I have had dogs in the family all our lives but last year got my first sporting dog....an Englsih Springer Spaniel. He's 2+ yrs old and is the friendliest, loving, most dedicated dog I have had. He loves to please his trainer (s), in this case my wife and I. I never had this breed before and I would not hesitate to advise most folks to look at this breed. They may not be for every one but I highly suggest looking into a Springer, so you don't deny yourself the opportunity to see what these friendly dogs bring to the family....Good Luck.