Seth, I agree with Candy and Sunny. It's probably just a dry gullet. Watch her to see how she does. But I put two things in the water: Sulmet and Duramycin. I bought the Sulmet last summer, when my chickens got cocci, so I just had it around. And I was glad I did, since it treats coryza. The Duramycin treats other stuff, but it's a more broad-spectrum antibiotic that can be used for a lot of animals. You can get them at feed stores for pretty cheap, and they're good to have around. When the chickens got cocci, I called a friend to have her run go get me some, because I heard it can kill fast if untreated. Sulmet is a liquid, in a white bottle with a blue label. I got it at Green's Feed. Duramycin is a yellow powder, and I got it at Feed World, but they probably have it at Green's, as well.
Do you have any plain yogurt? It really helped my chickens build their immunity back up after being sick. I milled some Flock Raiser, flaxseed meal, and rolled oats together, then mixed it into a mash with yogurt. They loved it. I've been making big batches of yogurt so I can keep in onhand for them.
Sunny, I also have two big dog crates. They're currently occupied, but the ducks leave it to go run around the yard during the day. I can find someplace to put the chicks, if you want to use them both.
And the lesson learned today... If you're holding ducklings in your lap and eating a Hostess Zinger, don't expect that nothing will happen. But they tasted the sugar and didn't want much more.
Edited by americanvalkyrie - 5/7/12 at 10:35pm