When my grandfather lived in Honduras, running a banana plantation around 1910, there were a lot of iguanas. He used to shoot them with his Savage 1907 32. My grandmother said that he got very good at knocking them out of trees and that they tasted very good.
I don't think that the hunters in Florida are eating those iguanas.
I wonder if the large toads taste like. May be a great delicacy.
I would think a good pcpo rifle would be fine for the toads and the local populatrion may be more accepting than someone hunting with a "firearm".