The image of the winged helmet comes from 19th c. archaeology mistakes, and the fact that we later figured out that the Celts did have crests and that some of those had wings (with a whole bird, which is what Roman descriptions talk about) does not validate that misinterpretation. It’s cherrypicking. Sticking with the wings specifically in the form that came from that misinterpretation, and not the actual ceremonial helmets that we found later, is still spreading the myth. The image that someone else posted up there looks nothing like the meme that is just the classic Asterix / German opera depiction.

I think it’s a farther cry to claim that the Celts had “winged helmets” when what they had was a whole ass turkey pigeon up there.