White Rock or White Leghorn?

[shy]

I am confused if I have White Rocks or White Leghorns. I know that leghorns have white cheeks and white rocks have red cheeks. Mine are 8 weeks and they look like regular skin. If they are leghorns, should their cheeks be white already or does that happen later?

I am kind of thinking they are rocks since they are slightly larger than my buttercups and their legs seem rounder and thicker. Also their bodies seem fuller than my skinny little buttercups. From what I can find, it would seem like leghorns would be just like my buttercups.

 

[Wildsky]

Would be super handy if you could post a pic or three