How to Identify the Eastern Copperhead (Identification Guide)

Key identifying features

The Eastern Copperhead (Agkistrodon contortrix) is a medium-sized, heavy-bodied pit viper best known for the distinctive hourglass or "Hershey's Kiss" shaped crossbands that run down its back. Unlike bands that fully encircle the body evenly, these markings are narrow across the spine and widen toward the belly, creating a saddlebag or bowtie silhouette when viewed from above. The unmarked, coppery-tan colored head gives the species its common name and is a reliable field mark when visible.

Coloration & pattern

Base coloration ranges from pale tan, pinkish-gray, to light brown, overlaid with 10 to 18 darker reddish-brown or chestnut crossbands. Juveniles show the same pattern as adults but have a bright sulfur-yellow or greenish-yellow tail tip, which fades to gray or black within the first few years of life. Some individuals have small dark spots scattered between the crossbands. The belly is pale with dark mottling along the edges.

Head, eyes & scales

The head is broad, triangular, and distinct from the narrower neck, typical of pit vipers. A pair of heat-sensing pits sits between each eye and nostril, though these are hard to see without close observation. The pupils are vertically elliptical, cat-like, in normal light. Scales are keeled (ridged down the center), giving the body a rough, matte texture rather than a glossy sheen. No obvious stripes mark the sides of the head, distinguishing it from several nonvenomous lookalikes that have facial striping.

Size & body shape

Adults typically measure 24 to 36 inches in total length, occasionally reaching over 40 inches. The body is thick and muscular relative to its length, tapering to a moderately short tail. Females tend to grow slightly longer than males, while males often have proportionally longer tails.

Range & habitat where you'll see it

Eastern Copperheads occur from Massachusetts and southern New York south through the Gulf states to the Florida Panhandle, and west through the Appalachians into Texas, Oklahoma, and Kansas. They favor deciduous forests, rocky hillsides, wooded stream corridors, and forest edges near suburban development. Leaf litter and mixed brown-and-tan surroundings provide superb camouflage, and copperheads often go unnoticed until closely approached.

How to tell it apart from look-alikes

Several harmless snakes are frequently mistaken for the Eastern Copperhead. Juvenile Eastern Rat Snakes and young Corn Snakes have blotched patterns but lack the true hourglass shape and have rounder pupils with no facial pits. The Northern Water Snake has a similar banded brown pattern but tends to show more irregular, less symmetrical crossbands and lacks the copper-colored head. Hognose snakes have upturned snouts and a different, blotchier pattern. The clearest distinguishing combination for the copperhead is the unmarked coppery head paired with narrow-topped, wide-bottomed hourglass bands and vertical pupils.