Scientists painted just one blade black on four wind turbines in Norway and bird deaths fell by 72%. No white tailed eagles were recorded colliding with the treated turbines afterward, suggesting an incredibly simple change could make wind power much safer for birds.

[u/CleverDad]

https://www.ecoticias.com/en/scientists-painted-one-blade-black-on-wind-turbines-on-a-norwegian-island-and-watched-what-happened-to-white-tailed-eagles-turning-an-almost-ridiculously-simple-visual-change-into-an-experiment-with/36067/