Sex of them?

[Chickenlover194]

 

[AustralorpsAU]

How old and some comb pics would be needed

And

 

[ADuckOnQuack]

From what there is to see there's one rooster and two pullets but need a clear and close pic and you might have to wait a little longer depending on age
G

 

[Gray Farms]

They're much to young still, need be at least 2 weeks old to attempt to sex

 

[4-H chick]

Can I see a picture of the last black chicken by the white