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Bird-Friendly Turbines

BBC News

Aug 24, 2021

Birds colliding with turbine blades is one of the main negative effects of onshore wind farms.

A nine-year study at Norway’s Smøla wind farm has found that bird strikes can be cut by up to 70 percent simply by painting one blade of a wind turbine black.

Scientists believe this reduces what they call “motion smear”, allowing birds to see the three rotating blades. Trondheim-based researcher Dr Roel May says further tests at other wind farms are needed to confirm the findings.

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