Urban Wildlife

Road Mortality: The Silent Wildlife Welfare Problem

Roads kill an estimated 100 million vertebrates in the UK annually, making them one of the most significant direct human-caused sources of wildlife death and suffering.

Key Facts

An estimated 100 million birds, mammals, amphibians, and reptiles are killed on UK roads annually
Badgers, hedgehogs, barn owls, and common frogs are among the most affected species
Barn owls hunt low over roadsides, making collision with vehicles frequent
Amphibian mortality at road crossings during spring migration can locally eliminate populations
Mitigation measures including underpasses, fences, and wildlife warning signs are effective

Welfare Considerations

Road-killed animals rarely die instantly. Many are struck and injured, crawl to roadside vegetation, and die from injuries over hours. Badgers hit by vehicles sustain severe trauma; surveys find many badgers with healed road injuries indicating they survive initial strikes but suffer. The scale of road mortality is enormous relative to its visibility. Mitigation measures are effective but require investment in species identification and targeted infrastructure.

What You Can Do

Report road-killed wildlife to national recording schemes to improve data quality
Reduce speed in areas with wildlife warning signs, especially at night
Support campaigns for wildlife underpasses at identified road mortality hotspots
Advocate for wildlife-sensitive road design in new transport infrastructure
Join local amphibian road crossing patrols in spring to safely move toads and frogs