Rooster or Hens?!

[Maderfarms]

Can anyone help tell me if my Oliver egger, the black one, and my dark brahma are hens or roosters? I keep going back and forth. They are roughly 12 weeks.

 

[GoatGirl123]

Looks like all hens but not sure

 

[ChickenWhisperer101]

They all look like hens to me.

 

[Rhodebar Lover]

The birds in question are pullets

 

[Frazzemrat1]

Pullets...
and the dark brahma can be nothing but a pullet with that feather pattern. Its a female feather pattern; the males are sexually dimorphic; so they look completely different.