A tidal creek runs through our yard and we have plenty of wildlife, including tree frogs. They are generally seen on the outside of our window screens in the evening. I suspect they are in pursuit of insects attracted by the light, but I have little evidence for this since we rarely see them move.
Last winter we had something living one of the plants we brought indoors after a summer outside. Whatever it was never made an appearance, but made VERY loud sounds on rare occasions. I'd love to know what it was and I hope it does not return this winter.