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probably not what you're thinking of, but this reminds me of a short story I read back in "Science F Iction Age" (when there was such a magazine being published) called "Groundling Dancer" or something along those lines; a society of winged humanoids evolved in what was implied to be some kind of post-apocalyptic/post-human scenario. The main character was a throwback without wings who became a kind of circus performer in the society of winged people that ostracized him. But he was male, IIRC.
Yeah sadly that's not it but thanks for the effort :)
I'm pretty sure it was a webcomic I saw years ago, and it had people with bird-like wings living on an island. Their wings were bright colours and single colours. I think the story followed this girl with no wings and there was a ceremony near the beginning. That's all I remember so hopefully someone knows it?