Hi! I have 4 ducks (3 female 1 male) who were all hatched in April 2017. On Saturday night I found my blue swed named Chico with a good portion of her tail feathers picked out. We took her inside and found out she did it to her self. She picked out a lot of feathers off her butt, a little under the wings and near the base of her neck. She was bloody and shaking. We have had her in the house ever since keeping a close eye and applying neosporin once a day. None of the others have done it and today she has started hissing at me and my other family members when we get near the shower (where we put her). What’s left of her feathers will fluff up and she’ll come at us hissing and almost coughing. She is still picking st some of her feathers as well. Not as bad but it’s still happening. Any suggestions!?