They are far too optimistic! The climate here is far to close to the "natural" habitat for them to all get rounded up and predators are few and far between. Quite a problem down here (you see them basking in the sun along some canals down here all the time), along with other "exotics" that escape or released into the wild (snakes, lizards, birds etc.!). They caught a 12'-16' boa living under someones house not that long ago and a couple of Monitor lizards have been spotted!!!!