Alligators, hawks, storks, herons, egrets, coyotes, raccoons, bobcats, and housecats would all prey on this species as soon as they hatch. Mature ones have fewer enemies but the hatchlings should be quite vulnerable and no doubt a certain percentage do buy the farm.
Snakes likely eat a few, too, perhaps even the eggs.
I could see training teams of dogs to hunt them. A pack of trained dogs will go after a bear, they surely could handle a lizard. And if they tree it, boom.