Back in April, I purchased 5 day old chicks from local grain store. We got a Buff Brahma, a Leghorn, a Rhode Island Red and a Wyandotte. All of them are laying except the Buff Brahma. They all grew up together but the Brahma stays away from the others. I have seen the Rhode Island Red pick on her. Sometimes she hides behind the waterer. I don't know if she isn't laying because they are picking on her. Is there anything I can do?