Cajun Chorus Frog vs. Spring Peeper

Both call from wet woods and flooded fields in late winter across eastern Oklahoma and the Gulf states (records share 44 one-degree squares). A: Three dark stripes or rows of dashes down the back in the Cajun Chorus Frog; a dark X between the shoulders in the Spring Peeper. B: A clean white line along the upper lip, under a dark eye stripe in the Cajun Chorus Frog; no white lip line in the Spring Peeper. Calls: the Cajun a rising, comb-like 'crreeek'; the Peeper a clear, high 'peep'.

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

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