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Pickerel Frog vs. Northern Leopard Frog

Look at the shape of the spots. Squared-off spots in two tidy rows down the back means Pickerel; rounded spots with pale borders, scattered anyhow, means Northern Leopard. Confirm with the groin as it jumps — bright yellow to orange on Pickerel, pale on Northern Leopard.

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Pickerel Frog

Lithobates palustris

Northern Leopard Frog

Lithobates pipiens
Pickerel Frog vs. Northern Leopard Frog: comparison sheet with the differences marked

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

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