A UK research team has found that purple colored wind turbines kill a significantly smaller number of birds. That's because insects are not attracted to purple and therefor the birds don't come to chase the insects. Question remains: are we, humans, attracted to purple windmills?
Maybe not. But windmills don't need to be white either. The image shows a row of colored windmills by night in Holland. As an interesting aside: this color scheme was made with the aid of Colorjive technology.