Wildsight
Compare two species

Broad-banded Copperhead vs. Plain-bellied Watersnake

They share streams and ponds from Kansas to Texas (records share 45 one-degree squares); the blotched young watersnakes are the usual mix-up. A: A heat pit and a vertical pupil in the Broad-banded Copperhead; no pit; a round pupil in the Plain-bellied Watersnake. B: Broad chestnut crossbands in the Broad-banded Copperhead; adults plain brown, grey or olive in the Plain-bellied Watersnake. C: Young: broad bands and a bright yellow tail tip in the Broad-banded Copperhead; young: dark blotches on a pale ground and no bright tail tip in the Plain-bellied Watersnake. The copperhead is venomous: leave it alone.

Open this comparison in Wildsight

Broad-banded Copperhead

Agkistrodon laticinctus

Plain-bellied Watersnake

Nerodia erythrogaster
Broad-banded Copperhead vs. Plain-bellied Watersnake: comparison sheet with the differences marked

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

More comparisons

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