 Two types of amphibians are found in the mounded prairie region, typically around vernal pools. The Pacific tree frog lives in large numbers on the rocks, while tadpoles of the rarer western toad can be seen between March and May. Mammals such as California voles, Heermann's kangaroo rats, raccoons, and long-tailed weasels can also be found in this region. The western meadowlark and two species of sparrows are the most common types of birds that are seen in the area. Turkey vultures, rock wren, three species of hawks, and other birds patrol the cliffs on the sides of the plateaus.
