The Lamborghini of chickens. They have a mutated gene which occurred sporadically in this wild landrace chicken from Central Java, Indonesia that produces a high amount of melanin that is a called Fibromelanistic. This means that every part of the bird is black, including feathers, beak, internal organs, and their meat.
Rooster: 4 - 5 pounds
Hens: 2 1/2 - 3 1/2 pounds
Eggs: Hens are poor egg layers with a maximum of 80 white colored from white tinted to cream colored eggs per year. They can lay about 30 eggs, stop laying and then cycle up again.
Roosters stand very tall, very alert and are quite aware of their surroundings. Hens are alert, but on my farm they are less aware since they are always scratching and eating. Their feathers are short, narrow and fit close to the body. Both roosters and hens have a single medium sized comb that stands straight and upright, and should have five distinct deeply separated points. Both should have smooth deep medium sized black wattles, small black oval earlobes, strong black curved beak, tail carried at a 45°angle, and non-feathered black legs with four black toes and black toe nails.
Once a cockerel or pullet grows older, there should be no leakage (too little of pigmentation in skin, feathers, beak or toes) of any color throughout any feathers. No mulberry characteristics (reddening of color) in combs, necks or wattles. In other words, the blackest bird with a beautiful greenish sheen. I have one Ayam Cemani rooster, #33, with leakage down his neck and mulberry wattles that is in my egg producing flock, now.
Currently the Ayam Cemani is not a recognized breed by the American Poultry Association.