LaPoulet
Songster
it could be mites or lice. I just treated mine last week. Check to see if you see anything crawling on her.I don't have a rooster, just the 3 hens. I have noticed her being pecked at once or twice. I have also noticed her pecking at it a bit, that is when I started using the blue kote and giving them some scrambled eggs for the extra protein. I just didn't know if it was something serious that I am just missing being a new chicken owner and all.