ducks dying

Two months ago I owned 17 healthy, happy 2-year-old ducks. Today I own only 11 ducks. So about 3 weeks ago, one morning I found one of females dead. Since then I've had 5 other ducks die. And, it's all been 6 females, I've lost no drakes. I'm so confused and sad. I don't know what to do. They...

Idk if death goes under this category but oh well. I had a Welsh Harlequin drake who died at around 6 months old. What was weird is that he never showed any signs of illness or anything like that. We just got up the next day to see that he was dead. He ate fine drank fine and everything was...