Snake FinderField Guide · Worldwide

Tell them apart

Gray Ratsnake vs. Eastern Copperhead

It matters: the Eastern Copperhead is venomous, while the Gray Ratsnake is harmless.

Gray Ratsnake

Gray Ratsnake

Pantherophis spiloides

Harmless
Family
Colubridae
Group
Ratsnake
Size
3–6 ft — among the largest U.S. snakes.
Identify
Long-bodied with weakly keeled scales; blotched, striped, or solid depending on species.
Eastern Copperhead

Eastern Copperhead

Agkistrodon contortrix

Venomous
Family
Viperidae
Group
Copperhead
Size
Usually 2–4 ft, heavy-bodied.
Identify
Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.

How to tell them apart

Often confused with the venomous copperhead, but this snake is harmless, with round pupils and no facial pit.

Never rely on a single feature to judge a live snake. If you cannot positively identify it, keep your distance. Informational only.