The only difference in the names are as follows Presa Canario = UKC Registry Dogo Canario = FCI Registry I know more Dogos that do working stuff then Presa if you want to say that. Red Star Kennels to El Presa they are consider Dogo Breeders Oak Leaf Ranch to El Presa they are consider Dogo Breeders I have yet to hear of any of the so called Presa Breeders have the titles these two kennels alone have. I myself weight pull and am training my Presas in schutzhund but I have been called a Dogo Breeder by them as well. They do not even do anything in the UKC world but bitch about what we do in it. You call it what you like but they all come from the same history Deb