Jackrabbits, squirrels, kangaroo rats, opossums, roadrunners, Cactus Wrens, various types of hawks, owls, sidewinder vipers, desert tortoises and horned toads are common in the lower Sonoran zone.

The upper Sonoran zone includes antelopes, California Condors, California Thrashers, bushtits, brown-footed woodrats, and Ring-tailed cats.

There is a transition zone, where Colombian Black-tailed Deer, gray foxes, bobcats, mountain lions, black bear, the Roosevelt Elk, garter snakes and rattlesnakes, water puppies, redwood salamanders, towhees, hummingbirds, chicadees and kingfishers thrive.

The Canadian zone is home to the Mountain weasel, Snowshoe hare, and chipmunk populations. There are also populations of the Sierra chicadee, the blue-fronted jay, Townsend's Solitaire, the water ouzel, and the Sierra Hermit Thrush.

The higher Hudsonian zone has just one native bird, the Sierra rosy finch; but you might also see various types of hummingbird, and the Clark's Nutcracker. There are also mule deer, Bighorn Sheep, the Sierra Coney, White-tailed jackrabbits, coyote, mountain lions, hawks, sparrows,and the Northern Flicker.

The native fishes, marine mammals, and federally-listed endangered species are to be found on the related Wikipedia California [Flora and fauna] link listed below: