By comparison there are FAR fewer windmills yet somehow the birds can't avoid the slow moving blades??? Doesn't make sense to me.
Maybe this article can shed some light:
https://www.nbcnews.com/mach/science/wind-energy-takes-toll-birds-now-there-s-help-ncna866336
Here’s a scientific study:
https://www.sciencedirect.com/science/article/abs/pii/S0006320713003522
The blades are moving much faster than they appear to be.
Wind farms killed at least 67 eagles in last five years
SOURCE:
https://www.nbcnews.com/science/wind-farms-killed-least-67-eagles-last-five-years-8C11133124
( This report was September 2013 )
EXCERPT:
Wind energy facilities have killed at least 67 golden and bald eagles in the last five years, but the figure could be much higher, according to a new scientific study by government biologists.
The research represents one of the first tallies of eagle deaths attributed to the nation’s growing wind energy industry, which has been a pillar of President Barack Obama’s plans to reduce the pollution blamed for global warming. Wind power releases no air pollution.
But at a minimum, the scientists wrote, wind farms in 10 states have killed at least 85 eagles since 1997, with most deaths occurring between 2008 and 2012, as the industry was greatly expanding. Most deaths 79 were golden eagles that struck wind turbines. One of the eagles counted in the study was electrocuted by a power line.
The vice president of the American Bird Conservancy, Mike Parr, said the tally was “an alarming and concerning finding.”