The world most expensive chicken which happens to be a black Indonesian is popularly known as the Ayam cemani. It is an uncommon breed from Indonesia.
Every single thing about this domestic animal is black including it eggs. The black Indonesian is worth at $2500 each. It is originated from a village on the island of java.
The world most expensive chicken was said to have been used for centuries for religious and mystical purpose. One would wonder if using the toilet is possible after eating that which can buy a very good car or a house.