Wild Animal Welfare

Wild Bird Window Strike Prevention

Window strikes kill hundreds of millions of birds annually - simple modifications to glass significantly reduce this preventable mortality.

Key Facts

Over 600 million birds die from window strikes in the US alone each year
Birds cannot distinguish reflected sky or vegetation from real habitat
Pattern spacing of 5cm horizontal or 10cm vertical prevents most strikes
UV-reflective films visible to birds but not humans are effective
Keeping indoor lights off at night reduces nocturnal migrant collisions

Welfare Considerations

Window strikes cause immediate death or serious injury in birds that may survive the initial strike only to die hours later from internal bleeding. Prevention is cheap and highly effective.

What You Can Do

Apply bird-safe window films or external screens to large glass areas
Move bird feeders to within 1 metre of windows to prevent fatal impacts
Turn off lights at night during migration season