After losing 2/3 of my hens, I felt that the one remaining hen needed company. So...I got 2 hens about the same age - one Americana and one Red Sexlink. I also got a cute Buff Orpington, which is not yet laying. The problem is that my original hen, also a Red Sexlink, has become a major bully. To the point that the Americana is bleeding from the back of the neck. She's also caused the little Buff Orpington to bleed. When she was part of my previous group of 3, she was the bottom of the pecking order. Now, she has become vicious. I only have one coop, so it is hard to separate them. Right now they are free ranging, so they could escape the bully. But when I go out I like them to be in their coop. I tried a product called Stop-Pick. It has a strong smokey smell, and is supposed to be offensive to poultry. Unfortunately, it hasn't helped. Any ideas would be greatly appreciated.