> Yeah, apparently just paint one rotor blade differently to make it stand out and birds will stay clear [1]
The study you're citing was only studied 4 wind turbines, while the evidence does point towards this working, I wouldn't say that the existing evidence is conclusive. Also, the turbines with the darker blades still killed birds, just less bird than the turbines with standard blades.
Wind turbines don't kill enough birds to be more than a drop in the dead-bird bucket. It's a talking point used by people who were looking for reasons to be against wind turbines, but housecats kill four orders of magnitudes- not 4x, 10,000x- more birds each year.
The percent of human-caused bird deaths due to wind turbines is smaller than the percent of Americans dying in airplane crashes each year, compared to all US deaths each year.
Windmills generate more than 1% of power. Thus if you scale up the wind turbines by 100x (to cover more than all power generated over the world), they still kill over 100x fewer birds than cats.