I have bunch of 6 weeks old ameraucanas. All breed I had so far were only straight comb, and ameraucanas have pea comb and I have no clue how to tell the gender difference in pea comb breed. By what age can I tell boys and girls? What is the comb difference between boy and girls by what age? I want to see how boys/girls develope combs differently, any input (or pictures) would be appreciated.