A friend had an eagle smash through the window of a Huey, and splat into his lap - luckily dead, but still a bit distracting.
I had a galah JUST miss the front window but got sucked into the open cabin door, splattering on the foot of the crewman in the back.
And I lost 2 mates when their F-111 at 450kt hit a pelican, too low to eject once they got over the shock.