3 Ameraucana - Hen or Rooster?

[Mamatomany123]

See, Chicky (our kids named them) looks almost exactly like yours. I guess Bean's differences are by parentage. This is our first time owning chickens. We ended up buying 4 more pullets because we had one/two in the mix, but the differences between Bean and the other Easter Eggers just confounds me. That and the way the one seems to keep mounting him and he almost screams about it like the two white hens. Thank you all for your answers.

I have all females and occassionally the one highest in the pecking order will try to mount the others. She just showing that's shes the boss. Same for your cockerels. He must be on the bottom.