AJH,
Granted ofcourse the bird would have some forward speed and could hit you from various angles which would all have different outcomes, hit the blades, intakes, windows etc. The size of the bird would also have an effect, a buzzard's pretty big and having a closing speed probably around 140-150kts you can see how it did what it did. Perhaps what I should have asked is does anyone know to what standards the screens are tested?
Frozen chickens fired at the screen and all that.