Bummer. Definitely not native. Actually this is the advantage of a relatively clear swimming pool/pond, a bullfrog can be removed.
I can remove this one from my pond too, after I have used more water for irrigation. I can drain one side completely and put it in the other side.
Californians please do not put red eared sliders, bull frogs, or gambusia (aka mosquitofish) in your pond they are _not_ California pond critters. The first two will eat the native chorus frogs and ducklings. gambusia simply are not appropriate for a Mediterranean climate. They won’t survive well in the winter time. Which is why vector control scatters them around willy nilly. It is unlikely that they will become invasive, but you’re deliberately putting an animal in an environment that it suffers in and cannot do well in. And there are plenty of other options!
Bob
