I have 8 hens and they are 20 weeks old. This is my first year of raising chickens, so I am still learning about them! I have two black Sexlink, two buff Orpington, two barred rock, one brahma, and one Easter egger. The black sexlinks have big red comb and wattles. The barred rocks have small pink comb and no wattles. The buffs and brahma have very small comb. For the Easter egger, I couldn't see any comb at all!!!! Maybe They are not mature yet??