Sierran Tree Frog

The native Sierran tree frog or Pacific chorus frog is famous for its “ribbit” sound, which became known as the classic frog sound used in movies and cartoons. Conservation groups have been working to raise the frog's numbers in the San Francisco Bay Area. Sierran tree frogs are mostly nocturnal and can live in forests, mountains, and grasslands, as long as there is cover and a source of water nearby. Depending on the season and their environment, Sierran tree frogs can change color from brown to green.