They exist! Mom and Dad swore to me they had a trio of toads that staked out the patio in front of the barn, but I haven’t seen them. Until now!
Well. I’ll be buggered. Or not, since the toads are hanging out, eating bugs! The internet says they are Great Plains toads, Bufo cognatus. Sounds like ‘thinking diver’ to me, but my Latin is entirely made up. This site says they are worth $25 per toad to farmers in Oklahoma, because they eat pests!