I've never had a sick duck, so I'm going to include every detail, even though some of it might not help you. It all started when I went out to see them. Puddles came over to get water, but it was empty. I took it out, and went outside to refill it. Once I got back inside I turned it upside down, and I then realized I hadn't put the lid on, and it spilled all over the duck enclosure. The ducks were freaking out. After I laid the towels down, I looked at puddles, and she was snorting black/brownish stuff from her nose. I ran upstairs, and filled up the tub with warm water, and put in some peas. After they were in the bath, Puddles ate some peas, and then this snot/saliva slimey stuff started coming from her mouth, and nose. She washed it out, but then vomited in the tub. After she vomited she was perky. I decided to take them out, and let them dry off (By the way, I sit there with a towel, and dry them naturally. They are too scared for a blow drier) and she started snorting the slimey stuff again. She was also doing this vibrating thing, and every time she did it she would freak out. (I'm also going to add that every time I pick them up, they leave this crystal looking stuff almost like tiny shreds of skin on my lap.) When I took them off my lap, I saw Puddles toenail had lifted up, and was bleeding, so I dipped it in the tub and the bleeding stopped. They are in their brooder now. So what should I do?! I have never had my duckies doing this. Except for all this, their personality's are still the same, and they aren't freaking out. They keep shaking... Could it be pneumonia? Thanks!