My duck Penny has been dealing with this strange skin disease for over a month now. I've posted a few times, and I appreciate everyone's responses and suggestions. So far nothing (including vetricyn, 2 types of antibiotics, anti-fungal) has made a difference and it seems to be getting worse. She's lost feathers on a large patch of her skin. The photo doesn't reveal the extent of the raw skin - it's about 4 times this large, under the feathers, and on both sides. She continues to have a robust appetite and behave pretty much normally, although I see her twitching her wings sometimes as though she's uncomfortable. Today after they swam I looked again at my other pekin Puddles, who is our family favorite, and she definitely has the same thing going under her feathers, though not near as bad. I feel like she's about to start down the path Penny's on. We're pretty sad about this. I think I may try to take her to the vet for a skin scraping, depending on the cost. I also think I'm going to put Penny down tomorrow, on the chance that she's spreading it to the other ducks, and especially since she now has such large patches of exposed skin. I feel terrible about this, and I also feel terrible that my other duck might be getting sick. These two ducks MAY be jumbo pekins, and I'm wondering if anyone with a jumbo may have experienced this? My third pekin is quite a bit smaller and I see no signs of this on her skin. I'm including a photo, if anyone has seen or experienced this before, I would love to hear from you.