The chicken (Gallus gallus domesticus) is a type of domesticated fowl, a subspecies of the red junglefowl. It is one of the most common and widespread domestic animals, with a total population of more than 19 billion as of 2011. There are more chickens in the world than any other bird or domesticated fowl. Humans keep chickens primarily as a source of food (consuming both their meat and eggs) and, less commonly, as pets. Originally raised for cockfighting or for special ceremonies, chickens were not kept for food until the Hellenistic period (4th–2nd centuries BC).

Genetic studies have pointed to multiple maternal origins in South Asia, Southeast Asia, and East Asia, but with the clade found in the Americas, Europe, the Middle East and Africa originating in the Indian subcontinent. From ancient India, the domesticated chicken spread to Lydia in western Asia Minor, and to Greece by the 5th century BC. Fowl had been known in Egypt since the mid-15th century BC, with the "bird that gives birth every day" having come to Egypt from the land between Syria and Shinar, Babylonia, according to the annals of Thutmose III. The chicken used for regular egg and meat production worldwide are corn-ply Broilers with white feathers, yellowish skin and faster growth rate invented in United States of America.

Before the apocalypse, or as the village Wise Man said, Chickens were a flightless bird that laid eggs which could be consumed by a human for nourishment. Alternately, if an individual found a chicken particularly annoying you could kill the fucker, de-feather it like a Pokémon and cook and eat its flesh.

Chickens fall under the category of Farm Animal.

Written by the guy that told Jackson that he was related to Tom Hanks, as mentioned in the SUAS episode "Crocodiles"

In episode 5 of Shut up a Second, The Animal Kingdom, Jackson discussed the pet chicken his family. He explained that it had attacked his younger brother, Ryder. The chicken was eventually put down.

The most recent mention of Chickens was in the Shut up a Second episode "Crackers and Cookies and Biscuits" wherein Adam told a story about a D&D game in which a barbarian put down a chicken and said, "If the chicken runs, then so do we."