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Slightly smaller and with less distinct orange spots than the individual observed on the same property the previous night. Single wedge-shaped spade on rear foot. Mostly smooth skin. Paratoid glands absent. Vertical pupils. Prominent bump between eyes. Photos by PP. Entry by CP.
"Warty" skin. Distinct orange spots. Vertical pupils. No mid-dorsal line. Paratoid glands absent. Overall size about the same as a sliver dollar. Photos by PP. Entry by CP.
Fairly certain this is S. bombifrons, but would appreciate a second opinion.
The plains spadefoot toad (Spea bombifrons) is a species of spadefoot toad which ranges from southwestern Canada, throughout the Great Plains of the western United States, and into northern Mexico. Like other species of spadefoot toads, they get their name from a spade-like projections on their hind legs which allow them to dig into sandy soils.