I have a total of 3 hens - the older hen, RIR, she stays in her own coop. And the other coop is shared by the two BO hens. You are right, I think I need to get a dog crate and put one in there to separate them.
Thank you for the reply!!! Also, I notice my laying BO has purplish color on...
One of my BO is being really aggressive for the past several weeks with the other BO, who stays in the same coop with her. I later found out the aggressive BO was trying to lay an egg. She tried for the first couples of times but nothing happened then she laid her first egg several days ago...