I have call ducks and one of the males I have (last year's hatch) has always looked frazzled. I don't know why. His feathers are always ragged. I see him preening like the other ducks, but he just looks bad all the time. Ideas as to why this would happen?

Here you can see the ragged male in the foreground and the nice, clean groomed male in the background.

Here you can see the ragged male in the foreground and the nice, clean groomed male in the background.