Slow worms are legless lizards that are declining across the UK due to habitat loss and predation by cats. Their distinctive ecology and welfare needs make them a priority for garden conservation.
Slow worm welfare in garden environments is most significantly affected by cat predation. Cats will hunt and kill slow worms without eating them, causing significant local population impact. Slow worms seeking warmth are particularly vulnerable under materials like corrugated iron or flat stones that can be flipped by cats. Creating predator-free refuges and restricting cat access during peak slow worm activity reduces welfare harm. Loss of rough garden areas to decking and artificial grass eliminates habitat entirely - even small rough areas with grass and leaf litter support slow worm populations.