New pics roosters or hens. Black one oldest red ones a week apart in age. Probably 5-6 months old

[Clbpolo]

 

[MysteryChicken]

They appear to be pullets. Especially the two Wheatens.

 

[swamphiker]

I don't see any pointy saddle or hackle feathers, so I would say all hens. It would be helpful to see better photos of the red and black chickens' heads.

 

[Johnny17]

Females