Very interesting. I heard about this from a news page where readers can write in comments. One comment stated a wind turbine was missing a blade completely and it is nowhere to be found. Looking at the video you can see the missing blade and another showing signs it struck a solid object that caused structural stress damage bending the blade like it had bent wilted.
The real mystery is where did the other blade that is missing from the turbine tower go. And than we have the witness account of a ball light appear in front of the turbine before the damage.
Theres another wind turbine video out there showing a turbine turning at a high rate than exploding as if being hit. Far as I know, that event had recoverable damaged parts.
I had commented on a bird die off post here somewhere but can't seem to find it. Ah, the matrix at work as usual. Anyway, I found a recent story of a mass bird die off where starlings were laid out in a garden as if they (100) all fell from the sky. The report perplexed investigators and speculation is they died from some form of poisoning or a predator chasing them into the ground.
My theory would be they ran smack dead on to a solid object above ground that was cloaked from bird sensory flight path observation. The story also reports the birds had beak damage as well as wing injuries. Yup, flying into an invisible solid object will do that sort of damage.