No mites or parasites of any kind or any kind of bug eggs, dirt, etc.?????? Vent areas are clean-feathers fluffy everywhere else except on the backs????
2-3 of my 15 hens have missing/broken feathers at the top of their backs right at the tail. Skin is red and irritated. No scabs or bleeding, no bugs or mites seen, no rooster. Do chickens have a "pecking order" and is that is what is going on? If it is, is there something we can do to stop...