Can you sex?

[Chickenheadmate]

View attachment 2199559You probably need to know, I'm assuming, the breed of both parents to know if these are sex-links.
BUT, if you had to guess on pullets, which ones would you pick?
One of the black chicks on the other pictures had a white spot on the head.
But those could be from a different set of parents.

 

[FuzzyCritters]

IF these were sex links, the pullets would be the red striped ones and the males would be the yellow ones. Unfortunately, if you don't know what breed the parents are, there is no way to know if they are sex links.