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Northern Red-legged Frog

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description Northern Red-legged Frog Overview

The Northern Red-legged Frog (Rana aurora) is a medium-sized amphibian native to the Pacific Northwest region of North America. Its range extends from southwestern British Columbia in Canada down through Washington, Oregon, and into northern California. This species is typically found in humid forests, marshes, and streams, favoring cool, moist environments. It is recognized by the smooth skin on its belly and the distinctive, translucent red or orange coloring on the undersides of its hind legs.

help Northern Red-legged Frog FAQ

How can I identify a Northern Red-legged Frog?

Rana aurora usually has reddish or pink coloring on the underside of its hind legs, a dark facial mask, and a pale line along the jaw. Its back is generally brown or reddish with dark spots rather than bright green.

Where does the Northern Red-legged Frog live?

Its range follows the Pacific coast from southwestern British Columbia through Washington and Oregon into northern California. It uses moist forests and wetlands, breeding in still or slow-moving water.

How is Rana aurora different from the California Red-legged Frog?

The Northern Red-legged Frog is Rana aurora, while the California Red-legged Frog is Rana draytonii. Rana draytonii generally occurs farther south and grows larger, although their ranges approach each other in northern California.

When do Northern Red-legged Frogs breed?

They breed during the cool, wet part of the year, often in winter or early spring depending on latitude. Females attach large gelatinous egg masses to submerged vegetation in ponds, marshes, or slow water.

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