Thanks for the shared input everyone.
My two dogs are sporting dogs that are part-cocker spaniels.
They would feel irresistibly compelled to chase down and bite their teeth into these toads. The toads could look to them to be like a rubber dog toy too. The toads often just sit, frozen-like in one spot. This makes them so easy for my dogs to just walk over and pounce on and die from.
When I go out, at or after dusk, I must keep my dogs on a leash when walking with them. Otherwise, I KNOW them so well, that for a fact, I'll be rushing them to the vet after hours, with me holding back distraught tears, watching them writhing in toad-induced pain.
Fire ants are enough to protect my dogs from, now there are poisonous toads.
I wonder what other wildlife to be on the lookout for, other than the mosquitoes, fleas and ticks, and birds of prey?? and the prickly-stickly painful on the paw plant-life called "burrs?"
By the way, I've learned the hard way, how much better it is to use a tweezer to pick off those little round burrs, out of my dog's soft & curly cockapoo fur, and off their tender paws. I've been pricked often by them, and pricked the dogs even more by trying to dig them out of between their paw's pads.