Can someone help me tell if one of my birds is a rooster?

[citychickx6]

I am voting hen at this point.

 

[robaincltnc]

Hi again folks. I thought I would post more pics 2 weeks later and see what ya'll are thinking. Its a beautiful bird and I hope that I can keep her/hen. To this point there is no crowing whatsoever. She is bigger than the brown one that is the same age. All the birds have small spurs growing. The blue one still has a comb bigger than the brown one...both are supposed to be americaunas. Hen or roo? Thank you!

 

[myhubbycallsmechickeemama]

I think the grey one is a cockerel by the color of his comb and wattles and his stance. From my observation, the boys stand more erect. I think the other is a pullet. Just my opinion though.