That's crazy. We've seen them here too so it won't be long till they come take over I'm sure. they'll probably eat all my cute little tree frogs.we are lucky not to have any poisonous critters in my area.
but those bullfrogs have been known to eat small birds, snakes, and even attack cats, some are over 2 pounds.
they are such a problem that there are now Bullfrog exterminators.
If too many move into my pond, I may have to think about catching and killing them, though not looking forward to it.