I went by the coop today and noticed a fair amount if white feathers on the ground. I have 2 Columbia Rocks in my flock so I checked them out and found the culprit. I took these pictures in the evening looking for mites but I don't any and the skin looks clear so I don't think she is being pecked. The feathers come off her back easily if I pinch one. Is this molting? This second picture is of how her back appears if I don't move the feathers. All the whitER ones on the back would come out very easily if I were to put any slight pull on them.