help: are these pullets or cockerels?

[alibaba]

hi to every one, i bought them 1 month ago now may be they all are 1.5 months old. i don't know their gender but i feel there are five cockerels and only one pullets. plz correct me if i'm wrong plz help me.

 

[Kelsie2290]

Ya, I think you are right, probably the only girl is the first one, rest look like boys.

 

[CowGrrrl]

All except the first are cockerels.