Guess the sex?

[chicksandchores]

They all look like cockerels

Unfortunately, op, I have to agree with sassysarah. My bcm pullets are 12 weeks old now and their combs are smaller than any of those chicks’ combs. Looks like you’ve got four boys to me.

 

[RustikRoo]

Well that's a bit of a bummer. Wasn't expecting 100% boy rate. Thanks for info everyone.