Radiocarbon dating of blackened grains from the site

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Chickens are gregarious birds and live together in flocks.

They have a communal approach to the incubation of eggs and raising of young.

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.

To discourage it, they may place the hen in an elevated cage with an open wire floor. Here the opisthotic bone appears in the occipital region, as in the adult Chelonian.

bo = Basi-occipital, bt = Basi-temporal, eo = Opisthotic, f = Frontal, fm = Foramen magnum, fo = Fontanella, oc = Occipital condyle, op = Opisthotic, p = Parietal, pf = Post-frontal, sc = Sinus canal in supra-occipital, so = Supra-occpital, sq = Squamosal, 8 = Exit of vagus nerve.

There are more chickens in the world than any other bird or domesticated fowl.

In Australia and New Zealand (also sometimes in Britain), there is a generic term chook The species as a whole was then called domestic fowl, or just fowl.However, in some breeds, such as the Sebright chicken, the rooster has only slightly pointed neck feathers, the same colour as the hen's.The identification can be made by looking at the comb, or eventually from the development of spurs on the male's legs (in a few breeds and in certain hybrids, the male and female chicks may be differentiated by colour).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).Chickens also give different warning calls when they sense a predator approaching from the air or on the ground. She will "sit" or "set" on the nest, protesting or pecking in defense if disturbed or removed, and she will rarely leave the nest to eat, drink, or dust-bathe.

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