I just recently bought these two Ayam Cemani "hens" and a rooster. One of the hens is 4-5 months old and the other hen is a few months younger. The older hen's tail is looking a little rooster-ish. But I'm not familiar enough with this breed, as these are my first Ayam Cemani chickens. And I'm not even 100% sure that they aren't mixed with another breed. What would you lovely people guess the sex of these birds are?