Wild Slow Worm Welfare: Garden Reptile Conservation

The slow worm is Britain's most widespread reptile and a valuable garden resident. Often mistaken for a snake, it is actually a legless lizard with distinct welfare and habitat needs.

Key Facts

Slow worms are the UK's most common reptile, occurring in gardens, allotments and rough grassland throughout Britain
They are fully protected under the Wildlife and Countryside Act - killing or injuring them is illegal
Slow worms are legless lizards, not snakes - they have eyelids, ear openings and can shed their tail when threatened
They give birth to live young (ovoviviparous) rather than laying eggs, typically 6-12 young in late summer
Slow worms hibernate from October to March under logs, in compost heaps or under corrugated metal refugia
They feed primarily on slugs, making them highly beneficial in gardens
Cat predation and strimmer injuries are the leading human causes of slow worm mortality in gardens

Welfare Considerations

Slow worm welfare in gardens is primarily threatened by two human-caused risks: cat predation and strimmer injury. Cats that catch slow worms often injure but do not kill them, causing severe wounds that are almost always fatal without treatment. Strimmers operated through long grass or rough vegetation kill large numbers of slow worms and other reptiles annually. Reflexive tail shedding when handled causes the animal stress and the lost tail takes months to partially regenerate. Providing undisturbed refugia and controlling strimmer use near rough vegetation are the most effective garden welfare interventions.

What You Can Do

Place a sheet of corrugated metal or roofing felt in a sunny corner as a slow worm refugium
Check rough grass areas by hand before strimming to avoid injuring sheltering reptiles
Keep cats indoors during peak slow worm activity periods (dawn and dusk on warm days)
Report slow worm sightings to the Amphibian and Reptile Conservation Trust for national monitoring