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Ultrasonic speakers reduce bat deaths at Pennsylvania wind farm

Engineers found that broadcasting ultrasonic sound from wind turbines reduced bat deaths by up to half during a two-summer study.

By DoomRadar · Published on DoomRadar .

Why it matters

The finding could reduce wildlife losses associated with expanding wind-energy infrastructure.

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  1. Engineers bolted ultrasonic speakers to turbines at a Pennsylvania wind farm and searched the ground beneath them every day for two summers, and the broadcasting turbines killed up to half as many bats, because a bat avoids air it cannot listen through ↗scienceblog.com · Recorded source date: Aug 24, 2026, 3:01 AM UTC

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