that would be cooked, not smashed, birds
Not sure. I guess it would depend on the frequency, strength, and length of exposure.
I’m just saying there have been explanations trying to convince people the birds somehow got disoriented and smashed into trees and the ground and windows, etc.
That explanation is completely off the board. There is no evidence to support it. I’ve had birds fly into my windows at dusk and they always leave some kind of mark or feathers or whatever.