Has anyone seen a duckling bill like this? It doesn't close all the way. Is there anything I can do to help it? It is 5 days old. I've been using niacin, but I'm worried it's not the right kind and I don't know how to tell. All the other ducks are doing great. I incubated and hatched 21 ducklings last week. These are my first ducks.![](https://www.backyardchickens.com/content/type/61/id/6894206/width/350/height/700)