What sex is my chicken?

[DcChickens21]

What sex is the chicken numbered 1? Its the same age as the rest of my chickens. Its a black sex link. Her tail feathers aren't growing at all. Is it just a late bloomer?

 

[Mojerrick]

What sex is the chicken numbered 1? Its the same age as the rest of my chickens. Its a black sex link. Her tail feathers aren't growing at all. Is it just a late bloomer?

Don't the cockerels have marking closer matching a Dominic or Plymouth rock? I would say it's a pullet.

 

[Mojerrick]

Don't the cockerels have marking closer matching a Dominic or Plymouth rock? I would say it's a pullet.

Correction, Barred rock.

 

[Ol Grey Mare]

Black sex link cockerels are barred. ...this bird had the plumage of a pullet