At what age can you distinguish male OEGB from female?

[cicene mete]

What are some of the early signs that help to determine whether an OEGB is a pullet or a Cockerel? At what age do they start to differentiate? Thanks in advance

 

[SunAngel]

I have some 3-4 week old OEGBs and can already tell the boys on most of them. Their combs get redder and larger than the girls pretty quick. My OEGB girls have tiny combs with no red. Sometimes you can tell the boys by their cocky stance also. The girls tend to be calmer. The boys are usually gutsier, more outgoing and like to start trouble in the brooder. Some will even try to crow at 5-6 weeks.

 

[cicene mete]

Thanks for the info.