Gold Star? White Leghorn?

[farmerChef]

It does have a single comb, looked like a pea in the last set of pics.
It's it the same age as the buff chick? It's looking like it may be a broiler
:/

 

[Fernchick]

Not sure if the chick is same age as the Buff... but it has to be within a week. It's a huge heavy chick though LOL