Thanks for all the advice everyone. No lice or mites present as far as we can see, so I'll just have her make sure to keep the hen cleaned up and watch for any other abnormalities.
Hi guys. My mom has 6 hens, and one of them has a problem. It has had dirty tail feathers for a while. My mom read that she should cut or pull these feathers out, which she did, and this is what it looks like under there. Does anyone recognize what this could be? The other 5 hens are all...