my big old matriarch loves me, but only me. She has learned to tolerate one of my other hens, but 3 new pullets I got last month are simply not given time of day by her - she either attacks them constantly or chased them from food or 'her' space. She even spends all her time as far from them as possible. Currently she is sleeping under the hedge on one side the garden, all the others are in the run dirt bathing. At night she either tries to prevent them getting in the coop, or stops them getting out in the morning. She sleeps in the nest boxes at the back while the rest of the girls all snuggle together in the other side of the coop She just does not want anything to do with them. Help.