In one of my hunting books here is a description of what sounds like your situation ........ *Large splotches of blood at the spot where the animal was hit, turning to continuous drops that diminish within 100 to 200 yards. You may find some clots along the trail. Bleeding continues as long as the deer is moving but stops when the animal lies down. This pattern indicats a hit in the leg, back muscles or neck muscles, or rarely, in the body cavity. Eventually these wounds will stop bleeding, so youll have to trail the deer based on other clues.... hope this helps