WE HAVE REAL GOOD LUCK WITH RAT TERRIORS. NOTHING WRONG WITH A BLOOD HOUND BUT THEY ARE TRAINED UNDER STRICT SUPERVISION. A HOUND THATS JUST TRAINED FOR DEER WILL MOST TIMES TAKE THE FRESHEST TRACK IT FINDS. THATS WHY EVERYTIME YOU PUT ON A BIG OLE BUCK TRACK A COUPLE HOURS OLD IT WILL COME OUT RUNNING DOES..................TONY