I have purchased 3 ducklings so that my duckling I have hatched from an egg would have proper company. Well, I ordered them online and a friend of mine who live in their vicinity brought them to me. They are 19 days old and like 3 times smaller than my 4 days older duckling. They are missing a lot of fuzz, in fact one is almost completely bald, they have bald spots on their necks, wings, abdomens, well, everywhere! I would not have taken them in such condition if I would see them. I really hope they are not sick. Perhaps they were just neglected and had issues with adult birds or larger siblings. They are extremely scared and they squeeze themselves into a corner, shivering in terror whenever I bring them food and water. They do eat and drink. It looks like it took one - the largest duckling, to start eating and the other two followed. I am optimistic because of that and hope they will be OK. There seem to be no blood in their droppings. When they drink, they make sounds like they are using a high pressure equipment. My duck is a lady, doing it slowly and graciously without so much splashing and weird sounds. Do you think it's possible they have some kind of disease or parasite infection? Photo can't capture the damage of their fuzz. Some parts are brown-ish and bald. By brownish, I mean the fuzz. I did not see any open wound or anything similar, skin seems to be intact.