Pekin duck

Pekin duck is a breed of domesticated duck used primarily for egg and meat production. It was bred from the Mallard in China. The ancestors of those ducks originated from the canals which linked waterways in Nanjing and originally had small bodies and black feathers. With the relocation of the Chinese capital to Beijing, supply barge traffic increased in the area which would often spill grain on which the ducks fed. Over time, the ducks slowly increased in size and grew white feathers. By the Five Dynasties, the new species of duck had been domesticated by Chinese farmers.
In 1873 nine ducks were exported from China to Long Island, New York in the United States and the animals and their meat are sometimes referred to as "Long Island duckling". It is the most popular commercial duck breed in the United States, although some farming has since relocated to Indiana from Suffolk County, New York. Around 95% of duck meat consumed in the United States is Pekin duck.