Was she born like that? Or did she injure it? If she was born like that I would go to a vet or cull her. If she injured it I would either take her to a vet or isolate her in a dog crate to mend. One of my silkies recently injured his leg, but he had no obvious deformity. A week in the hospital crate and som vit c in his food did wonders. He's fine now
Because of the deformity, I doubt it would be this easy without advise from an avian vet.

Because of the deformity, I doubt it would be this easy without advise from an avian vet.