334 Chicken Gallus gallus The chicken (Gallus gallus domesticus) is a domesticated fowl, a subspecies of the Red Junglefowl. As one of the most common and widespread domestic animals, with a population of more than 24 billion in 2003, there are more chickens in the world than any other species of bird. Humans keep chickens primarily as a source of food, consuming both their meat and their eggs. 176086 Chicken 334.jpg image/jpeg 130613 361 Animal foods Poultry Type 1 2018-01-18T03:18:03Z 2019-05-14T18:04:23Z 2 true specific 9031 true FOOD00329