Sexing straight run chicks

[SusieCue]

I have no experience in sexing chicks. Our Black Copper Marans are now 2 weeks old. I have noticed out of 14, three have yellow on the chest while the others are all white. Is this a way to tell pullets from cockrells or is this just a variation in breeding?

 

[Mountain Peeps]

Sorry, but those cuties are too young to sex right now. Post again in several weeks.

 

[SusieCue]

thank you! Will do!