Hi! One of my warrens has started losing feathers, lots of feathers. I've kept watch and she does not seem to be being picked on, or pecking them out herself. There are no signs of injury (peck marks and the like). I've seen her sitting a bit hunched up on occasions at intervals during the last couple of days, but she was still very hard to catch, so still lively. Having inspected her, there is no sign of any infestation but she does appear to be a bit on the thin side. There is no sign of her having diarrhea as her vent is clean and she is eating along with the others. Has anyone any idea what might be amiss here? Many thanks!