how old is she?
to me it does not look like angel wing because it's not twisting out and away from her body ,,
it is just drooped down.
how does she do in the pool? Does she flap and splash?
what is her diet?
let's see what @Miss Lydia thinks ❤️
if the foot hurts too much to walk on it, they drop the wing down to balance themself as they try to walk.
if you have a helper it will be easier to examine her
check her feet top and bottom it might be bumblefoot
look at her legs too
have a helper hold her while you carefully stretch out the...