Wild jungle fowl were domesticated as chickens about 5,000 years ago in Asia. China leads the list of countries with the most chickens with over 4.5 billion birds, followed by the USA, Indonesia, Brazil, and Iran..
|3||United States of America||1,971,216|
|5||Iran (Islamic Republic of)||1,030,068|
Which country has the most Duck? What about Cattle and Buffaloes?