Mites are nighttime blood suckers, the size of pins. Once in awhile, there will be a feather-picking hen in the group. Sometimes, everything is fine but there is still feather picking. Some feather pecking is due to aggression. Sometimes hens develop scraggly bare patches.
Josie. Age: 24.
Some hens go through a dramatic molt during which they turn almost naked over night.
Amanda. Age: 23.
Reduce empty calorie treats like cracked corn and stale bread, provide greens and interesting things to eat like melons and squash. Jasper is a dominant hen and she could stop this behavior if she wanted to. Some hens lose feather near their vent because they have a continual stream for thin diarrhea.