Identification Key to Juvenile and Adult Amphibians of Alberta

photo: ACA, Kris Kendell

Northern Leopard Frog

Dorsolateral folds well-defined and white or cream-coloured; large round or oval dark spots with light borders.
That's the one!

photo: Twan Leenders

Wood Frog

Well-defined dark eye mask; no red on underside of hind legs and belly; may have distinct narrow light stripe down center of back.
That's the one!

photo: Richard D. Sage

Columbia Spotted Frog

Indistinct eye mask; often with red colour on underside of hind legs and belly with age; small irregular dark spots with light centres; never with light stripe down centre of back.
That's the one!

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