the National Park Service

“ Woodhouse's toad is nocturnal. In areas of human development, they can be seen feeding on the insects attracted to lights. They eat a variety of insects and spiders, including ants, bees, scorpions, and insect larvae. While they prefer wetlands and pools, they can be found long distances from permanent bodies of water, especially during monsoon season in the Grand Canyon. While many amphibians in the Grand Canyon have been negatively affected by introduced fish, Woodhouse's toad is not palatable to some introduced fish. ”