For the record, I've added more heat and increased the size of their waterer again... Photo attached. Thanks everyone for the suggestions, everyone seems healthy, fingers crossed.
That's a good question. The only thing I can think of is that the kiddie pool they're in was outside and had some leaf litter in it? I sprayed it out real well but didn't bleach it. It also doesn't explain the first two deaths because they were in a smaller plastic bin for their first 24hrs. I...
Well, I lost the little poorly one overnight. It seemed to just sit there and breathe heavily and didn't eat or drink until it passed. I'm hopeful that this was aspergillosis and not something more contagious.
😢Well another duckling is fading. This one has the same lethargy as the one I tried to save, but it also has pronounced nasal congestion. I gave it a couple swims in a bowl of warm water and it managed to remove a ton of mucous, but it still sounds congested and looks to be breathing hard.
On the morning of 9/2, I got 16 2-day-old Muscovies (hatch date 8/31). That same evening, one was dead under the brooder plate - no apparent warning. The next day (9/3), one was lethargic and seemed a bit off balance. I tried coaxing it to drink some sugar-electrolyte water, and it took a little...