Does anyone remember the name of this children's book?

It’s a beautifully illustrated book. The story is myth-like: a woman cannot conceive and goes to a wise/magic woman in the forest, who does something to allow her to become pregnant. She has a girl, and is very happy. The girl starts growing nubs with feathers on her shoulders, and the mother, in panic and denial, binds them to hide them and stop their growth – but they keep growing. Eventually something happens and the girl leaves home (I think she was 13ish), goes to the forest and encounters the wise woman, who informs her that the wings are her gift to the girl and unbinds them. They are giant, and brown, and look like owl’s wings. I don’t remember the rest. Does this sound familiar to anyone?