Mexican Treefrog vs. Squirrel Treefrog

Both live in the yards and resacas of the Lower Rio Grande Valley, where the Squirrel Treefrog has been carried in with plants. A: A broad dark brown band from the nostril through the eye to the shoulder in the Mexican Treefrog; no broad dark band through the eye and along the side in the Squirrel Treefrog. B: A pale spot or bar on the upper lip below the eye in the Mexican Treefrog; no pale spot below the eye in the Squirrel Treefrog. C: Big: 2 to 3.5 in in the Mexican Treefrog; small: 0.9 to 1.6 in in the Squirrel Treefrog. The Mexican Treefrog honks ('wonk-wonk'); the Squirrel Treefrog gives a raspy, duck-like 'waaak'.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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