I've got 6 chicks altogether 5 silver lace wyandottes and a black mottled Pekin bantam. The silver lace are 4 weeks old and the bantam is 2 and a half. Even though it's tiny the bantam bully's the others. It won't let them near the food or water. I put more separate food and water but it just runs after them pecking at there bottoms. They seem generally scared of it so what should I do???