Hi. One of my little girls has some balding on her neck (see picture). Is this from the others pecking her or is it something like mites? Penelope is the one with the bald neck (she's a black sex-linked). She's the smallest of four. None of the others have bald spots.
Thanks ahead of time!
and Ethel, Metoo, Harriet II, Penelope, Lucille and Margaret Hatcher