Hi! Tao here! I just got some Barred Plymouth Rock hens (baby hens) to keep my 2 year old Red Star hen company. The rest of her flock was eaten . They are now about 3 weeks old so i tried to introduce them to my Red Star out of the pen. When they got together, the big one kept pecking the little guys in the face ! How can they be here flockmates of this is happening?! Some body help!!!!