Hi everyone. So I’m having a problem I have an Easter egger that is really mean to one chicken in particular. She is constantly jumping on top of her pushing her down to the ground and pulling the feathers up on the back of her neck. I have to physically rush to them just to get her off of this one particular chicken. Well today as soon as I got her off of this chicken another one of my chickens got on top of the same chicken and was doing the same thing. I was getting on to them and going toward them I had to dang near grab this other chicken off Of my poor chicken. I noticed when the second chicken was being mean to her, her butt area was protruded then after a few seconds she finally pooped.
I’m at a loss. Please if anyone can help me figure out why they are doing this I would greatly appreciate it. The dark red one is the one being picked on the lighter chicken is the light one this is bullying (not my actual chickens) couldn’t find one that looks like the main aggressor

