My duck has a scab on her back.

[Jacksonb]

I have 5 female campbell ducks all a little over 20 weeks old. One of the ducks has a large scab on her back. The ducks will sometimes tand on each others back and bite their neck while in the pool. I dont know if it is a bully duck causing the problem or if it is mites or lice. Their pool water wasnt changed for a few days so that might have something to do with it. I have not noticed this until tonight and one other looks like it is starting to scab. Any information would be much appreciated, thank you.

 

[Isaac 0]

Could you post a few more photos?

Could have been caused by the other females, or a predator of sorts. It appears it happened a while ago, so I would probably just apply an antibacterial ointment to the scab, and work on figuring out what caused it in the first place.

How often do you see the females on top of each other?