Adder
Vipera berus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyViperidae (Vipèrids)
- GenusVipera (Eurasian Vipers)
- SpeciesVipera berus (Adder)
Closest Relatives at Triglav National Park
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
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 | Tatra National Park | 🇸🇰 Slovakia | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Triglav National Park | 🇸🇮 Slovenia | |
| 6 | Wadden Sea National Park | 🇩🇪 Germany | |
| 7 | Gauja National Park | 🇱🇻 Latvia | |
| 8 | Biebrza National Park | 🇵🇱 Poland | |
| 9 | Białowieża National Park | 🇵🇱 Poland | |
| 10 | Cévennes National Park | 🇫🇷 France |
Quick answers
What are the chances of seeing a Adder in Triglav National Park?
About 25% of visitor-days record a Adder sighting in Triglav National Park, based on 39 observer-days of citizen-science data from GBIF.
When is the best time to see Adder in Triglav National Park?
July has the highest sighting rate for Adder in Triglav National Park in our monthly data.