Hi all, could do with some advice. I have been keeping chickens for over 16 years now but have not ever had this happen before. Out of the nine Pekin hens I have, four of them have sustained extensive feather loss from around their ear region, and extending to their necks. I have not once witnessed any feather pecking tendancies in the brood, so wondered if they may have a mite that is specific to the neck/ear area. All their other plumage is uneffected.