How soon can you tell between hen and rooser?

Barred Rocks have spots on their heads that can tell you the sex of them, also the coloring is different on them. I believe a smaller, more compact spot on its head indicates hen and a larger more sparse spot is a roo. Also, I think the roos are darker than the hens, not positive on this one though. Silkies, they are really hard to sex until they are older. I have 14 week old silkies, and I thought I had 1 roo and 2 hens, the one roo became fairly evident at about 6-7 weeks, but just this last week or so I have discovered that I actually have 2 roo's and 1 hen.

 

Usually at 3 to five weeks depending on the chicken and/or breed. Post pics and we'll give it a shot!

 

wow I didn't know both male and female had spots on their heads with barred rocks. I thought it was only the female! I hope the one I gave away as a girl is really a girl! Anyway, I can tell pretty early with mine. They are two weeks old now and I can see the difference already. It's easier when you have both sexes to compare to that's for sure! Good luck!