Aww. Yes, crested ducklings can have problems, but I agree with the advice about vitamins and the shavings. He seems to be a fighter, though. I noticed when he got stuck in a corner and couldn't see, he got really distressed until his friend came over.
I can't tell you how long it will take, but some people seem to have a full or nearly full recovery while others don't.
I can't tell you how long it will take, but some people seem to have a full or nearly full recovery while others don't.