Hello, I have 4 ducks and 1 drake. They were born in May 2016 so 9 months old. Curly the male has been mounting the females for some time now. They started laying in Dec and I have hatched babies from them. Today when they were taking their baths in their pool we (my daughter and I) noticed black on their backs! So we started the chase lol caught each one and 3 out of the 4 females have a bald spot on their backs. We flushed, cleaned and put a honey wound gel I have on the wounds. (Blukote was at home 9 miles away) Does this mean I need more ducks for my drake? Do I need to seperate so the girls can heal? Any ideas will be greatly appreciated!!