Almost struck a bald eagle once. Danged thing swooped down in front of us after something in the road. Guess it did did not see us till very late. Don't know how it missed getting hit but we had a windshield full of madly flapping bird.
No thump, no evidence of a hit, no sight of it in a quick glance in the mirror. I guess the wall of air, like a boats wake, that these things push helped blow the bird over the top or to the side. Either way, one lucky eagle.
Hope it has learned to check traffic before swooping on food.