Anguis fragilis

  1. Wildlife
  2. Reptiles
  3. Slow-worm


Despite their name and appearance, slow-worms are neither worms nor snakes, but are in fact lizards - they're given away by their ability to shed their tails and blink with their eyelids. They can be found in heathland, tussocky grassland, woodland edges and rides: anywhere they can find invertebrates to eat and a sunny patch in which to sunbathe. They are often found in mature gardens and allotments, where they like hunting around the compost heap. However, if you have a cat, you are unlikely to find them in your garden as cats predate them. Like other reptiles, slow-worms hibernate, usually from October to March.

How to identify

Much smaller than snakes, with smooth, golden-grey skin. Males are paler and sometimes have blue spots, while females are larger with dark sides and a dark stripe down the back.

Where to find it

Widespread, found throughout the country, except for most Scottish islands and absent from Northern Ireland.


When to find it

  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October

How can people help

The loss of our heathland and grassland habitats through human activity threatens the survival of our reptiles. The Wildlife Trusts are working closely with planners, developers and farmers to ensure these habitats are protected by fostering Living Landscape schemes: networks of habitats and wildlife corridors across town and country, which are good for both wildlife and people. You can help: look after slow-worms and other reptiles in your garden by leaving piles of logs for hibernating beneath. In partnership with the RHS, The Wildlife Trusts' Wild About Gardens initiative can help you plan your wildlife garden.

Local information

Bowdown Woods is a cluster of three woods within the West Berkshire Living Landscape area. Slow-worms are found here, the areas of heathland have been extended to benefit reptiles and the demolished buildings provide basking and hiding places for them too.

Slow-worms are also found at Warburg Nature Reserve. This reserve is found in the Chilterns Chalk Grassland Project area which was a large-scale BBOWT project to restore and enhance this declining habitat.

The Bernwood Forest project is another large-scale project which aims to enhance and recreate different habitats for a wide variety of wildlife including slow-worms. It will regenerate woodlands, improve meadows and extend hedgerows for the benefit of wildlife and people. 

You may also find slow-worms at Aston Clinton Ragpits, Shepperlands Farm, Wildmoor Heath, Sydlings Copse and Inkpen Common.

Please join your local wildlife trust today

Please join your local wildlife trust today

Please join your local wildlife trust today

Species information

Common name
Latin name
Anguis fragilis
Length: 30-40cm Weight: 20-100g Average Lifespan: up to 20 years
Conservation status
Protected in the UK under the Wildlife and Countryside Act, 1981, and classified as a Priority Species in the UK Biodiversity Action Plan.