cottonmouth snake in yard

Encountering a snake in your yard or on your property can be unsettling, especially if you're unsure whether it's venomous. While it's important to remember that no single physical characteristic can identify every venomous snake, there are several common traits that can help you recognize species that may pose a danger. The safest approach is to keep your distance and never attempt to handle or kill a snake

Common Identifiers of Venomous Snakes

Many venomous snakes found in North America share several physical characteristics, including:

  • Triangle- or diamond-shaped heads: Many venomous snakes, particularly pit vipers, have broad, triangular heads caused by the placement of their venom glands. However, some non-venomous snakes can flatten their heads when threatened, so this feature alone is not conclusive.
  • Elliptical (cat-like) pupils: Most venomous snakes have vertical, slit-shaped pupils instead of round ones. This can be a helpful indicator, though it should only be observed from a safe distance.
  • Heat-sensing pits: Venomous pit vipers have small pits located between each eye and nostril that help them detect warm-blooded prey.
  • Long fangs: Venomous snakes often have long fangs to inject venom. These are typically only visible when the snake opens its mouth and should never be checked up close.

The 4 Most Common Venomous Snakes in the U.S.

  • Rattlesnakes are the most recognizable venomous snakes in the United States. They typically have heavy bodies, triangular heads, vertical pupils, and a segmented rattle at the end of their tails that produces a warning sound when shaken.
  • Copperheads are known for their distinctive copper-colored heads and hourglass-shaped bands across a tan or light brown body. Their excellent camouflage makes them especially difficult to spot among leaves and wooded areas.
  • Water Moccasins (Cottonmouths) are thick-bodied snakes commonly found near rivers, ponds, and wetlands throughout the southeastern U.S. They range from dark brown to nearly black and are named for the bright white interior of their mouths, which they often display when threatened.
  • Coral Snakes look very different from pit vipers. They have slender bodies with bold red, yellow, and black bands that completely encircle the body. Because several harmless snakes share similar colors, it's best to avoid any brightly banded snake rather than relying on color patterns alone.

Keep Venomous Snakes Off Your Property

At Critter Guard, we offer wildlife control products designed to help prevent all kinds of snakes from entering your home or property. Our durable snake guards create a physical barrier that helps keep unwanted reptiles out while providing long-term peace of mind. To learn more about our snake guard products and how they can help keep venomous snakes far away from your home, contact us today.