Ok weird thing...
He's been doing great, and all but one of his scabs have fallen off. He is back to acting like his old happy chipper self again. Yay!
Now for the weird part. The last couple of mornings he has come out of the duck house with more and more feathers missing from around his eyes. At first I thought it was my one girl pulling them out at night, but when I took a closer look today, I found that they are actually falling out. Just petting him in those spots with very little pressure caused them to fall out like when he was moulting his baby feathers. It wasn't happening anywhere else that I checked, just around the eyes. This is my first year owning ducks, so I don't know if this is normal/common, but it seems very strange to me.