Slow Worm

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	Snowdonia National Park	🇬🇧 United Kingdom	40–50%
2	Bavarian Forest National Park	🇩🇪 Germany	40–50%
3	Cévennes National Park	🇫🇷 France	30–40%
4	Triglav National Park	🇸🇮 Slovenia	30–40%
5	Pyrénées National Park	🇫🇷 France	20–30%
6	Cairngorms National Park	🇬🇧 United Kingdom	20–30%
7	Picos de Europa National Park	🇪🇸 Spain	20–30%
8	Biebrza National Park	🇵🇱 Poland	20–30%
9	Aigüestortes National Park	🇪🇸 Spain	10–20%
10	Fertő-Hanság National Park	🇭🇺 Hungary	10–20%
11	Wadden Sea National Park	🇩🇪 Germany	10–20%
12	Ordesa y Monte Perdido National Park	🇪🇸 Spain	Insufficient data
13	Tatra National Park	🇸🇰 Slovakia	Insufficient data

Quick answers

What are the chances of seeing a Slow Worm in Snowdonia National Park?

About 48% of visitor-days record a Slow Worm sighting in Snowdonia National Park, based on 128 observer-days of citizen-science data from GBIF.

When is the best time to see Slow Worm in Snowdonia National Park?

May has the highest sighting rate for Slow Worm in Snowdonia National Park in our monthly data.