All 18 UK bat species are legally protected, and bats face welfare challenges from roost disturbance, light pollution, habitat loss and collision with roads and wind turbines, requiring active conservation management.
Bat welfare is supported by strong legal protection of roosts, but roost disturbance during building renovation and development is a persistent problem. Bats excluded from roosts without mitigation may be unable to raise young or hibernate safely, causing population-level welfare harm. Light pollution is a subtle but significant welfare issue — bats that emerge late due to artificial light near their roost have reduced foraging time in warm months when invertebrate prey is most abundant. Wind turbine mortality has become a significant welfare issue as turbine numbers increase, particularly for migratory species. Careful turbine placement and cut-in speed management can significantly reduce bat mortality without major energy production losses.