The chicken is a domesticated bird that belongs to the family Phasianidae, which also includes pheasants, partridges, and quails. They are one of the most common and widespread domestic animals, known for their edible eggs and meat. Chickens are primarily raised for food and are a major source of protein in many parts of the world. They are also kept as pets, for exhibition purposes, and for their feathers, which are used in various industries. Chickens are social animals and are known to have a hierarchy within their flock. They communicate with each other through various vocalizations and body language. They are hardy birds and can adapt to a variety of climates and conditions.