The grass snake is Britain's largest native snake and is increasingly dependent on garden ponds and compost heaps for reproduction as its traditional wetland habitats decline.
Grass snake welfare is primarily threatened by deliberate persecution, accidental killing during garden clearance, road mortality, and loss of egg-laying sites. Snakes found in gardens are often killed out of fear, despite posing no threat to humans or pets. Welfare impacts from persecution include the acute harm of killing and the population-level effect of removing individuals from areas where they contribute to healthy predator-prey dynamics. Providing compost heaps and maintaining garden ponds creates habitat that supports both grass snake welfare and the amphibian communities they depend upon. Education about grass snake identification and behavior is the most important tool for reducing persecution.