I have 4 Pekin duckings they are 2 weeks today, a few days ago I noticed redness on 2 of their backs so I adjusted the heat lamp and it has gotten better, but now I notcied almost all of them have bald patch on thier necks. Could it be them just lossing the fluff and growing feathers?? I don't think it's mites bc there are no bites on them or me. They are inside, they get a bath 1-2 time a a day with warm water, I use natural wood shavings and pee pads, I clean it everyday sometimes twice, and they have food and water daily. Here's a clear picture.