This Indonesian chicken breed known as Ayam Cemani takes ‘black’ into an entirely different realm. The black color of Ayam Cemani is not limited to its feathers – the color is all over and even on the inside. Everything about this chicken is black – skin, beak, plume, tongue, legs, toe nails, even its meat, bones, and organs. Even bone marrow is black. Their blood, although not black, is very dark colored.