'The White Lady' was a book I read when I was young. It is about an albino bat a man found and nursed back to health. As a game, it would fly through the turning blade of his electric fan at 600rpm, but would not try at 900.
It is impossible to accept this estimate for bat deaths by slow-turning aeolians.
I call bullshit. Noway a bat is going to be able to fly through a fan going at 600rpms.
This is why bats are killed by wind turbines.
Holy haemorrhage Batman Wind turbines burst bat lungs Not Exactly Rocket Science