California Tree Frog vs. Pacific Chorus Frog

Both breed in southern California's rocky streams; the Pacific Chorus Frog is found almost everywhere. A: No dark stripe through the eye in the California Tree Frog; a bold dark stripe from the nostril through the eye to the shoulder in the Pacific Chorus Frog. B: Rough and bumpy, grey with dark blotches like granite in the California Tree Frog; smooth, green, brown or grey in the Pacific Chorus Frog. Calls differ: a single low quack (California Tree Frog) vs a two-part ribbit (Pacific Chorus Frog).

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