Wildlife

Deer-Vehicle Collision Prevention

Strategies to reduce deer-vehicle collisions, which kill millions of deer and cause significant human casualties annually.

Key Facts

Over 1 million deer are struck by vehicles in the US each year
Deer-vehicle collisions cause approximately 200 human deaths annually in the US
Peak collision times are dawn, dusk, and during autumn rut season
Wildlife crossing structures reduce collisions by up to 97% at specific sites
Seasonal warning signs, lighting, and vehicle-mounted deer whistles have variable effectiveness

Welfare Considerations

Deer struck by vehicles often suffer prolonged deaths from internal injuries, broken limbs, and shock. Many animals are not killed instantly and suffer for hours before being found. Even survivors of glancing impacts often sustain injuries that prevent normal feeding and movement, leading to slow death from starvation or secondary predation. Preventing these collisions is both a human safety and animal welfare priority.

What You Can Do

Slow down during dawn, dusk, and night driving in deer habitat
If you see one deer, expect others - deer travel in groups
Support wildlife crossing infrastructure in your region
Report injured deer to local wildlife authorities
Advocate for wildlife-sensitive road design in infrastructure projects