Wind turbines offer a cleaner alternative to fossil fuels, but their rotating blades can pose a collision risk to birds, including raptors that hunt or soar near wind farms. Researchers in South Africa have tested a simple way to address this problem by painting two broad red stripes on one blade of selected turbines. According to a 2026 preprint on red-patterned wind turbine blades , the experiment at the Umoya wind farm near Hopefield in South Africa's Western Cape found a median 83% reduction in bird fatalities at four treated turbines. The approach aims to make moving blades more visible to birds, potentially helping them avoid collisions without requiring turbines to be stopped. However, the findings remain preliminary, and further trials are needed to establish whether the method works consistently across different wind farms and bird species.
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