I have a six-month-year-old black sex link hen that is very small. I was looking online at black sex links and I noticed that most of them are bigger than Ash (the black sex link). I would understand that she's young, but her sister who is a golden wyandotte the same age as her is bigger than the pictures online for her breed. Am I doing something wrong? Should I be giving her more nutrients? Should I stop worrying? I want to make sure Ash is growing normal so she doesn't get sick or hurt.