My chicks are 4 weeks now. Can you guess the sex?

[Zwillingsmama]

The whole group

SS Scarlet
EE Wonder
OE Olive
BCM Trix
BR Pepper

I know for sure Pepper is a girl, petty confident that Trix is a girl too. Not so sure about Scarlet, Wonder and Olive. I attached pictures. The OE I think is a Welsummer australop mix not sure about the EE

 

[aglandaetap]

As of now, they all look pulletish to me. You may need to post pics back in 4 weeks for reassurance. Some SS can be very obvious or very difficult to guess when they are young.