okay so today i got my first 2 chicks EVER!! They are adorable... but one of them is a little big bigger and hyper as all heck!! runs around and screams constantly, and the other is pretty lethargic. sleeps A LOT. passes out standing up, but I have seen her eat a little. The bigger one keeps pecking the smaller one! Is this all normal? I was told they were the same age, but im not so sure!