Sierra Nevada Yellow-legged Frog vs. Foothill Yellow-legged Frog

Both have yellow under the legs; their records meet on the west slope of the Sierra Nevada (Foothill below, Sierra Nevada high up). A: Rounded, no pale triangle in the Sierra Nevada Yellow-legged Frog; pointed, with a pale triangle on top in the Foothill Yellow-legged Frog. B: Smooth to slightly bumpy, bold lichen-like dark mottling in the Sierra Nevada Yellow-legged Frog; rough, pebbly skin, grey or brown with faint marks in the Foothill Yellow-legged Frog. Height helps: the Sierra Nevada Yellow-legged lives mostly above 4,500 ft in lakes and tarns; the Foothill below on rocky streams.

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

More comparisons

• Sierra Nevada Yellow-legged Frog vs. California Red-legged Frog
• Sierra Nevada Yellow-legged Frog vs. American Bullfrog
• Sierra Nevada Yellow-legged Frog vs. Cascades Frog
• Southern Mountain Yellow-legged Frog vs. Sierra Nevada Yellow-legged Frog
• Foothill Yellow-legged Frog vs. Northern Red-legged Frog
• Foothill Yellow-legged Frog vs. Cascades Frog
• Oregon Spotted Frog vs. Foothill Yellow-legged Frog
• California Red-legged Frog vs. Foothill Yellow-legged Frog
• Coastal Tailed Frog vs. Foothill Yellow-legged Frog
• Foothill Yellow-legged Frog vs. American Bullfrog
• Southern Mountain Yellow-legged Frog vs. Foothill Yellow-legged Frog

Wildsight identifies the reptiles and amphibians of the United States. Every comparison