I have 6 speckled sussex that I hatched from eggs. They are excellent birds, thing is I can't tell who is what sex. Is there an age that you can tell for sure? Right now they are 16 weeks old. On Friday they will be 17 weeks old. Is there a way to tell?? Any other chicken I can tell the difference between the roos and the hens by this age, but these are real hard. Any help would be great. They are not crowing, there really is no difference in combs. I can't tell if they have saddle feathers or if that is how they just look.