Think these are roo's or pullet's?

[ashl768]

Ok thanks everyone!

 

[aghiowa]

your barred is a roo, the rest are female

 

[my little peeps]

This is driving me crazy! I bought a red star from a hatchery that guarantees the sex of the chick with 90% accuracy. Well the pullet doesn't look like a red star (it does have some red feathers but it isn't solid red) and its 7 weeks old. I'm not not sure of the gender. What do you think?