What kind of breed is my chicken?

[chickenpower]

I purchased 6 RIR (about 2 weeks old now) last week. One didn't make it. We purchased another pullet (?possibly?) from another store the next day. The guy wasn't very helpful, didn't really know the breed. He also had the chick dyed orange for Easter. We purchased the chick almost a week after Easter so it is losing the dye (thank GOODNESS!). Now that the "dye job" is fading, my chicken is white. I know my other 5 are RIR (all females). Can anyone tell me what the larger one is (it is about 1-2 weeks older than the other 5, that is my guess)?

 

[chicmom]

I'm going to guess it's a White Leghorn. I see a single comb there. It could also be a White Plymouth Rock. Mostly likely White Leghorn though.

 

[chickenpower]

I was thinking those 2 myself This is my first time raising chickens so I am new to this but I have been doing a LOT of research See that circle on the face, like the "cheek area"? i see that on pictures of white leghorn chicks...so maybe?? thank you!