When most people think of snakes, the initial reaction is often fear or anxiety. But here in Green Bay, the vast majority of snakes are completely harmless—and even beneficial to the local ecosystem. That said, being able to distinguish between venomous and non-venomous species is essential for safety and peace of mind.
At Critter Control Green Bay, we believe that knowledge is power when it comes to wildlife. Here’s what you need to know about the snakes you might encounter in our area—and how to tell if the one in your backyard is a cause for concern or just passing through.
Common Snake Species in Green Bay
Green Bay is home to a variety of snake species, most of which are non-venomous and play a crucial role in controlling rodent populations. Some of the most frequently encountered snakes include:
The Eastern Garter Snake is one of the most common snakes in Wisconsin. It is typically dark brown or black with three yellowish stripes running down its back and sides. These snakes are completely harmless to humans, though they may release a musky odor when threatened.
The Eastern Milk Snake is often mistaken for venomous species due to its tan or gray body covered in reddish-brown blotches bordered in black. Despite its intimidating appearance, this snake is non-venomous and beneficial, as it helps control rodent populations.
The Northern Water Snake is another commonly misidentified species. With its brown or gray body and dark crossbands, it is often confused with the venomous cottonmouth (which does not live in Wisconsin). While the Northern Water Snake can be defensive when cornered, it is not venomous and plays an important role in wetland ecosystems.
Venomous Snakes in Wisconsin
Wisconsin is home to only two venomous snake species, neither of which is commonly found in Green Bay. However, it’s still important to recognize them.
The Eastern Massasauga Rattlesnake is a rare and federally threatened species. It has a gray or light brown body with large dark brown blotches along its back. This snake prefers wetland habitats and is extremely uncommon in northeastern Wisconsin. While venomous, it is shy and unlikely to be encountered in urban areas.
The Timber Rattlesnake is another venomous species found in Wisconsin, though it is primarily located in the southwestern part of the state and not native to Green Bay. It has a yellowish-brown body with dark crossbands and a distinct rattle at the tail. While dangerous, Timber Rattlesnakes are not aggressive and will typically avoid humans if given the chance.
Snake Safety Tips
Even non-venomous snakes can bite if provoked, so it’s best to give them space. Here are a few tips for staying safe:
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Do not attemtp to handle or corner a snake, especially if you’re unsure of the species.
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Keep your yard tidy—mow the lawn regularly, remove debris, and seal any small holes or cracks where snakes might enter.
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Watch your step while hiking or working in overgrown areas.
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Call a professional if you find a snake inside your home or in an area where it poses a risk.
When to Call Critter Control of Green Bay
If you’re unsure whether a snake is venomous or simply want it removed from your property safely and humanely, our team at Critter Control of Green Bay is here to help. We specialize in identifying, capturing, and relocating wildlife, always prioritizing safety and the well-being of both people and animals.
Don’t take chances—contact us today for professional snake removal and prevention services. Whether it slithers, scurries, or scampers, we’ve got you covered.