I bought a BR standard pullet along with a S. Buttercup and EE. I am starting to wonder if maybe I got a bantam BR. They are all about 7weeks and the EE is huge-looks like a monster next to the other two. But even the Buttercup's head looks bigger than my BR. I thought BR were a heavy breed. She's a beautiful bird. But I would have thought she would be the biggest of the three. How can you tell if they are bantam or standard when they are young? Thanks!