Is this a bantam rooster?

[Chickynik]

I have 9 and 10 week old Speckled Sussex chickens. I just got the little one in the picture yesterday and it is definitely 7 weeks. The gal that gave it to me thinks it is a roo and not a bantam. I have never had a bantam, but this baby seems awfully small for only being 2 to 3 weeks younger than the others. Any expert opinions, please? Thank you!

 

[Chicks in VA]

i think the small one is but the big one is not a bantam

 

[Chickynik]

i think the small one is but the big one is not a bantam

Yes, I know the big one is not bantam. I was just thinking the small one was an awful lot smaller for only being 2 to 3 weeks younger, but maybe that is just how fast they grow.

 

[Chicks in VA]

it looks like a bantam