grass snake
grass snakegrass snakegrass snakegrass snake

grass snake

Natrix natrix

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
40–50% · Likely
overall probability at Biebrza National Park
31 Verified records at Biebrza National Park
September Best month highest sighting rate
🌙 Nocturnal When it's active during nighttime hours (6pm–6am)

The grass snake (Natrix natrix), sometimes called the ringed snake or water snake, is a Eurasian semi-aquatic non-venomous colubrid snake. It is often found near water and feeds almost exclusively on amphibians. Wikipedia →

40–50% of wildlife watchers report a grass snake sighting in Biebrza National Park, based on 31 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

20–30
Jan
10–20
Feb
20–30
Mar
30–40
Apr
50–60
May
20–30
Jun
20–30
Jul
10–20
Aug
60–70
Sep
10–20
Oct
10–20
Nov
20–30
Dec

🌙 When They're Spotted

Most active during nighttime hours (6pm–6am) · across all parks (global)

🌙Nocturnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Białowieża National Park 🇵🇱 Poland
70–80%
2 Hortobágy National Park 🇭🇺 Hungary
50–60%
3 Triglav National Park 🇸🇮 Slovenia
40–50%
4 Biebrza National Park 🇵🇱 Poland
40–50%
5 Gauja National Park 🇱🇻 Latvia
40–50%
6 Fertő-Hanság National Park 🇭🇺 Hungary
30–40%
7 Tatra National Park 🇸🇰 Slovakia
30–40%
8 Kiskunság National Park 🇭🇺 Hungary
30–40%
9 Bavarian Forest National Park 🇩🇪 Germany
30–40%
10 Wadden Sea National Park 🇩🇪 Germany
5–10%

Quick answers

What are the chances of seeing a grass snake in Biebrza National Park?

About 43% of wildlife watchers report a grass snake sighting in Biebrza National Park, based on 31 days of visitor records from GBIF citizen-science data.

When is the best time to see grass snake in Biebrza National Park?

September has the highest sighting rate for grass snake in Biebrza National Park in our monthly data.

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