3 Types of Snakes That Live in Belgium! (ID Guide)
Do you want to learn about the types of snakes found in Belgium?
If so, you have come to the right place. In the article below, I have listed the snakes you can expect to see. For each species, you will find out how to identify that snake correctly, along with pictures, interesting facts, and RANGE MAPS!
You’ll see that the snakes that live in Belgium are very different from each other. In addition, certain snakes are common to find living around people. My guess is that you have seen at least one of the snakes below in your yard. 🙂
3 types of snakes that live in Belgium:
#1. Smooth Snake
- Coronella austriaca
Identifying Characteristics:
- Adults grow between 60 cm – 75 cm (23.5 – 29.5 inches) long.
- On the top of the head is a dark marking which is often in the shape of a crown.
- Usually dark brown or gray in color. Two rows of indistinct dark spots run down its back.
- As the name suggests, the scales of Smooth Snakes are very smooth and flat to the touch.
These small and slender snakes can be hard to find in Belgium because they are secretive.
Even when Smooth Snakes bask in the sun, they intertwine amongst plants to keep camouflaged. They are sometimes found after rain showers when individuals must leave their hiding places to escape the water and bask more openly.
Smooth Snake Range Map
Their primary prey is other reptiles, such as small lizards. But they will eat small mammals and birds occasionally. When threatened, they try to remain motionless and undetected, but Smooth Snakes won’t hesitate to bite when captured.
Interestingly, Smooth Snakes are ovoviviparous. This term means that the eggs are incubated internally, giving birth to live young!
#2. Adder
- Vipera berus
Also known as the Common European Adder / Viper.
Identifying Characteristics:
- Adults average around 55 cm (22 in) long.
- Color varies and can be brown, red, or light grey with a zigzag stripe on the back. But some individuals are entirely black.
- The head is fairly large and distinct and has a distinctive dark V or X on the back.
Despite being venomous, Adders are not considered an incredibly dangerous snake in Belgium.
Luckily, they are not very aggressive and rarely bite unless stepped on, picked up, or provoked. If you are bitten, their venom is quite painful and causes swelling, internal hemorrhaging, and necrosis. While the venom can be lethal, deaths are incredibly rare.
Adder Range Map
Adders are found in many habitats, such as forest clearings, marshlands, heathlands, pastures with hedgerows, and even alpine meadows in the Alps. They mostly eat small mammals, but lizards, birds, and frogs are taken when available.
Because of their large distribution and a broad range of habitats, the population of Adders is currently not threatened. But their numbers are decreasing slightly due to habitat loss for agriculture and collecting them for the pet trade and venom extraction.
#3. Barred Grass Snake
- Natrix helvetica
Identifying Characteristics:
- Dark grey-green upper body with characteristic black barring along the flanks.
- A distinctive yellow and black collar around the neck.
- It can grow over a meter (3.3 feet) in length.
Look for this snake in Belgium living near water!
Barred Grass Snakes are active when searching for food, using their sight and sense of smell to find their prey, which is primarily frogs, toads, and salamanders. These amphibians are eaten live without the aid of constriction.
Barred Grass Snake Range Map
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While these common snakes are not venomous and rarely bite, I would caution against picking one up as they have some interesting defense mechanisms. First, you may smell a nasty garlic odor from a fluid released through their anus. Or you may notice blood secreting out of their mouth and nose. And if that’s not enough, then the individual snake may regurgitate what they have been eating onto you. Hissing and striking without opening their mouth are also common.
Until a few years ago, the Barred Grass Snake (Natrix helvetica) was considered the same species as the Common Grass Snake (Natrix natrix), but a more in-depth study concluded there are enough differences to be considered separate species. Here is how to tell them apart:
- Common Grass Snakes have a bright yellow collar, which Barred Grass Snakes lack.
- Barred Grass Snakes are more grey than their olive green cousin.
Do you need more help identifying a snake you saw in Belgium?
If so, check out this field guide, which is full of great information!
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Which of these snakes have you seen before in Belgium?
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