Adder

Where to see

Adder

Vipera berus

Tatra National Park leads · 6 parks ranked by real sighting rates

Parks Ranked

Share of wildlife watchers reporting an Adder during a day in the park, from citizen-science data (GBIF)

#ParkCountrySighting
1 Tatra National Park 🇸🇰 Slovakia
~50%
2 Triglav National Park 🇸🇮 Slovenia
~40%
3 Snowdonia National Park 🇬🇧 United Kingdom
~40%
4 Cairngorms National Park 🇬🇧 United Kingdom
~40%
5 Hohe Tauern National Park 🇦🇹 Austria
~30%
6 Bavarian Forest National Park 🇩🇪 Germany
~30%

Before you go

Which is the best park to see an Adder?

Tatra National Park

In Tatra National Park, Slovakia, about 50% of wildlife watchers report an Adder sighting on a given day, the highest of the 6 parks where we can rate it, from GBIF citizen-science data.

When is the best time to see an Adder?

It depends on the park

In the top parks, the best months are April in Tatra National Park (about 80%), July and August in Triglav National Park (about 50%) and March in Snowdonia National Park (about 60%), as the share of wildlife watchers who report an Adder on a given day. Each park's Adder page has the full month-by-month chart.