Description: R. draytonii is a moderate to large (1.7–5.5 inches) frog. The back is a brown, grey, olive, or reddish color, with black flecks and dark, irregular, light-centered blotches, and is coarsely granular. A dark mask with a whitish border occurs above the upper jaw, and black and red or yellow mottling is in the groin. The lower abdomen and the undersides of its hind legs are normally red. The male can be recognized by its large fore limbs, thumbs, and webbing. The juvenile frog has more pronounced dorsal spotting, and may have yellow, instead of red, markings on the undersides of the hind legs. A characteristic feature of the red-legged frog is its dorsolateral fold, visible on both sides of the frog, extending roughly from the eye to the hip. R. draytonii looks very similar to the northern red-legged frog.

Habitat: This species has disappeared from an estimated 70% of its range, and is now only found in about 256 streams or drainages in 28 counties of California. However, the species is still common along the coast, and most of their population declines are in the Sierra Nevada and Southern California.

Range: The California red-legged frog is found in California and extreme northern Baja California, northwestern Mexico. This species now occurs most commonly along the northern and southern Coast Ranges, and in isolated areas in the foothills of the Sierra Nevada mountains. The current southernmost California populations are on the Santa Rosa Plateau in Riverside County, and within the Upper Las Virgenes Canyon Open Space Preserve in the Simi Hills in eastern Ventura County, near the community of West Hills. In 2015, egg masses from the nearby Simi Hills were introduced to two streams in the Santa Monica Mountains. Juvenile frogs were found living at the locations a year later.

Found in these States: CA

Diet: A California red-legged frog will eat just about anything it can catch and fit in its mouth. Most of the time they eat invertebrates, but on occasion, they will consume smaller amphibians and mammals.

Reproduction: Breeding occurs from November to March, or sometimes earlier toward the southern limits of its range. The male frog's advertisement call is a series of a few small grunts, usually given while swimming around under water. Choruses are weak and easily missed. This species is usually active in daylight and inhabits dense, shrubby, or emergent riparian vegetation and still or slow-moving perennial and ephemeral water bodies that also serve as breeding sites.

The tadpoles (larvae) of this species may metamorphose into frogs within about 7 months of hatching from the egg, or may overwinter, taking up to 13 months. This is a recent discovery, which may have management implications for the species, particularly when aquatic habitat undergoes modification.

Status: This frog is listed as threatened and is protected by federal and California law. The main cause of the population decline is habitat loss and destruction, but introduced predatory species, such as American bullfrogs, might also be a factor.

Subspecies: None

Taxonomy: It was formerly considered a subspecies of the northern red-legged frog (Rana aurora).