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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.
Adult chickens have a fleshy crest on their heads called a comb, or cockscomb, and hanging flaps of skin either side under their beaks called wattles.
Collectively, these and other fleshy protuberances on the head and throat are called caruncles.
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.
He does this by clucking in a high pitch as well as picking up and dropping the food. Hens will often express a preference to lay in the same location.
More specifically, mating typically involves the following sequence: 1. To stimulate broodiness, owners may place several artificial eggs in the nest.Both the adult male and female have wattles and combs, but in most breeds these are more prominent in males.A muff or beard is a mutation found in several chicken breeds which causes extra feathering under the chicken's face, giving the appearance of a beard.Domestic chickens are not capable of long distance flight, although lighter birds are generally capable of flying for short distances, such as over fences or into trees (where they would naturally roost).Chickens may occasionally fly briefly to explore their surroundings, but generally do so only to flee perceived danger.
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Hens cluck loudly after laying an egg, and also to call their chicks. Under natural conditions, most birds lay only until a clutch is complete, and they will then incubate all the eggs. The broody hen will stop laying and instead will focus on the incubation of the eggs (a full clutch is usually about 12 eggs).