AYAM CEMANI chicken from Indonesia. It is pure black, inside and out, from feathers to internal organs. Looks like one of those poor birds that gets pulled out of oil slicks! But they sell for thousands of dollars.
Australorp: "soft, shiny black plumage has hints of green and purple in the sunlight. Peaceful and dignified, Australorps are an absolutely delightful bird which we highly recommend to anyone who wants a pet chicken that lays dependably.