⚫ Does "one black" propeller paint really reduce birds hitting wind turbines by 70%? 🦅⚡

⚫ Does painting a "black one" propeller really reduce birds hitting wind turbines by 70%? 🦅⚡

Researchers from Norway have discovered a simple way to reduce the impact of wind turbines on poultry interestingly. By painting black one out of three propellers, it can reduce bird collisions by about 70% in a multi-year follow-up study.

🔍 Why did it work?

When the propeller is rotating at high speed, the bird may see a blur, making it difficult to estimate the position of the propeller, but blackening one of the propellers increases the color difference. The rotating propeller is more visible and the bird has a greater chance of maneuvering.

🌱 Although the results come from the only experimental area in Norway and require repeated studies of a wide range of areas and bird species, it is an interesting low-cost approach that may reduce the impact on wildlife along with future wind power expansion.

💡 If the results are confirmed in many countries, painting only one propeller could become the new standard of wind turbines around the world.

❓ do you think the new wind turbines should use one black propeller as standard?

Sources: Norwegian Institute for Nature Research (NINA), Ecology and Evolution (May et al., 2020), BirdLife International

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