I can recall a serious incident, probably a couple of decades ago, involving a bloke in a twin flying to an island offshore, on the NW coast of Western Australia, when he clobbered a white-bellied sea eagle.
The eagle shattered the windscreen, hit the PIC in the face and knocked out several of his front teeth. He retained control of the aircraft and landed safely, but it must have been a very nasty experience.
I cannot find any record of the incident, but perhaps I'm using incorrect search terms, or perhaps the incident is buried in archives that are not accessible online.