@Dejo63 here is an article about the crested gene. I agree with @sourland a really good poultry vitamin that has Vit E & selenium is a good way to help her.
https://www.backyardchickens.com/threads/the-truth-behind-crested-ducks.707110/
We have had many members over the years that have had crested. Some with serious problems if you would put this on the duck forum hopefully someone would reply, or maybe a mod would move it.
https://www.backyardchickens.com/threads/the-truth-behind-crested-ducks.707110/
We have had many members over the years that have had crested. Some with serious problems if you would put this on the duck forum hopefully someone would reply, or maybe a mod would move it.
Welcome to BYC 
