Wildlife Welfare

Wild Bird Window Strike Mitigation Advanced

Window strikes kill an estimated 100 million birds annually in the UK alone. External window treatments using UV-reflective or patterned films significantly reduce collision rates with minimal visual impact for humans.

Key Facts

Glass is estimated to kill 100-900 million birds per year in North America alone
Birds cannot perceive glass as a barrier and fly toward perceived habitat beyond it
Window films with 5cm by 10cm maximum spacing between patterns reduce strikes effectively
External treatments are more effective than internal ones as birds perceive external surfaces
UV-reflecting films that birds perceive but humans largely cannot are becoming available

Welfare Considerations

Window strikes cause immediate death or significant injury in affected birds. Injured survivors may die hours or days later from internal bleeding or brain injury. Prevention through external window treatments is highly effective and represents one of the most cost-effective interventions to reduce individual bird suffering available to building owners and householders.

What You Can Do

Apply UV-reflective or patterned film to windows in bird strike prone locations
Position bird feeders either very close to or far from windows to reduce strike risk
Report window strikes to your local wildlife trust or monitoring scheme