Wildlife Welfare

Wild Bird Window Strike Welfare

Bird-window collisions kill hundreds of millions of birds annually, with simple deterrent measures significantly reducing strike rates and saving individual bird lives.

Key Facts

Window strikes kill an estimated 100-1000 million birds annually in North America alone
Reflective glass and glass near bird feeders are particularly high-risk
Patterned window films visible in UV break up the reflection birds see
External screens and closely spaced vertical strings also reduce strike rates
Recovery from window strikes is possible if birds are found and given appropriate rest

Welfare Considerations

Window strikes cause immediate traumatic injury and death to birds that are navigating hazards created entirely by human structures. Simple, affordable deterrent measures can dramatically reduce strike rates, making window strike prevention an accessible individual welfare action with measurable impact.

What You Can Do

Apply collision deterrent films or patterns to high-risk windows
Place bird feeders very close to or far from windows to reduce strike risk
Place recovered stunned birds in a dark box to recover before release