There are many theories of wich the Jersey Devil came. One interesting theory is that the Jersey Devil could infact be a chupacabra, (literally translated into "goat-sucker"), the Jersey Devil's cryptozoological cousin mostly reported in the Southern states. First of all, the chupacabra and the Jersey Devil both prey on small animals, mysteriously disappear after being sighted/encountered, and they are both known to make a high pitch screeching noise. But the problom is, the chupacabra sucks its victims dry of blood, and the Jersey Devil is known to make a bloody mess of its victims. Chupacabras typically don't have wings, while most Jersey Devil sightings include massive wings. Chupas are usually small creatures walking on all fours, while the Jersey Devil is known to stand tall on two legs. Of course, this is just my opinion. keep in touch!