Sexing Orpingtons

[Newchickadee30]

Hello,
This is my first time with Orpington chicks so I’m trying to tell their genders.
they are 8-9 weeks old right now. They were hatched by two different broody hens a week apart.
I made my guesses purely off combs and not sure if that’s right or not with this breed.
Thank you

 

[Jak115]

Your guess is on point, the ones circled in blue definitely look like roos to me.

 

[LadiesAndJane]

Agree with above!