While molting, it is normal that the usual pecking order changes and they become quite ornery and stand-offish, as the incoming pin feathers hurt very much and they avoid being touched or getting close to each other during this time. Often times you even can find a molting hen spending the night in the nest box on her own.
Sometimes ovarian tumors/cancer can trigger unusual aggressive behaviour.
My thoughts: If you removed/rehomed Sophia, Dorothy might just start bullying another one of the hens.
I once had a beautiful and very big Olive Egger hen that would always start to bully and chase other hens, terrorizing them, no matter which of my many flocks I put her in.
When she finally injured my beloved Swedish Isbar Dolly to the point that I had to put the poor thing down, I had enough and butchered the Olive Egger the same evening, together with the rooster that did not protect her but allowed this to happen.
Peace and harmony are essential for a healthy and productive flock.
Ongoing stress caused by bullying behaviour of flock mates will lead to susceptibility to all kind of diseases and parasites, as the harassed chickens will not eat right or be able to enjoy dust bathing etc. They sometimes even hide inside the coop on the roost and don't eat or drink at all, just to avoid the uncalled for aggression.
Sometimes ovarian tumors/cancer can trigger unusual aggressive behaviour.
My thoughts: If you removed/rehomed Sophia, Dorothy might just start bullying another one of the hens.
I once had a beautiful and very big Olive Egger hen that would always start to bully and chase other hens, terrorizing them, no matter which of my many flocks I put her in.
When she finally injured my beloved Swedish Isbar Dolly to the point that I had to put the poor thing down, I had enough and butchered the Olive Egger the same evening, together with the rooster that did not protect her but allowed this to happen.
Peace and harmony are essential for a healthy and productive flock.
Ongoing stress caused by bullying behaviour of flock mates will lead to susceptibility to all kind of diseases and parasites, as the harassed chickens will not eat right or be able to enjoy dust bathing etc. They sometimes even hide inside the coop on the roost and don't eat or drink at all, just to avoid the uncalled for aggression.