I have 4 barred rocks & 4 golden wyandots. Two of the "dots" are the meanest of the flock. I've named them Amastasia & Dreizilla (the evil stepsisters from Cinderella). Dreizilla is the WORST. All of my "rocks" have bear spots on their back--right where their back meets their tailfeathers. One of my rocks--Noisy Nellie--has the worst, biggest, barest spot of all. Even Barb, my only actively laying hen, has one! Dreizilla has made it her life's goal to chase these hens (especially poor Nellie, who is showing signs of duress from always having to be hyper-aware and is now extremely skittish) and peck peck peck at them! I've already bought hot spot, and a flock block (not impressed with the flock block--just another treat and it's falling apart horribly in the chicken run). When I can get the stuff sprayed on my afflicted hens, Drei just wipes her beak off & gets back to her pecking & chasing! I thought that I didn't believe in de-beaking, but am considering it now. Either that or killing her (Dreizilla) outright. Will another hen just take her place as the meanest b*@%h in the flock?