Our girl Duck has a messy situation on her hands. We don't know what happened. She's had issues with the other girls plucking her tail feathers. It started before she came to us and has gotten much better but she still is missing a few and gets one plucked from time to time. We don't know if she just took a bad plucking or maybe had a really bad time laying an egg or something more serious. It started in the nest, we know that. The girls have been squabbling over their favorite nest a little more lately, despite plenty of room and enticing fake eggs in the others, so we aren't totally ruling out aggression, but it looks more serious. She's isolated and seem okay, but maybe in shock. Any advice on how to make her more comfortable or if we should be concerned further would be great. We're shaken and surprised. Thanks.