Article about the biology and classification of chickens, which descended from the wild Red Jungle Fowl Gallus bankiva, also called Gallus gallus of Southeast Asia. bird. One of the features that differentiate it from most other birds is that it has a comb and two wattles. The comb is the red appendage on the top of the head, and the wattles are the two appendages under the chin. These are secondary sexual characteristics and are more prominent in the male. A few other birds have a comb or similar appendage, in some cases bearing a different name such as helmet in the guinea, and a few have wattles with some having a single median one rather than a pair. The comb is the basis of the Latin name or classification of chickens. In Latin, gallus means comb, and the domestic chicken is Gallus domesticus. The Red Jungle Fowl, ancestor of most domestic chickens, is Gallus bankiva. There are eight recognized kinds of combs: single, rose, pea, cushion, buttercup, strawberry, Vshaped, and silkie. The chicken has two legs and two wings, a fact that influences housing and management. Domestic chickens have essentially lost the ability to fly. Heavy breeds used for meat production cannot do more than flap their wings and jump to a little higher level or move more rapidly along the ground. The lighterbodied birds can fly short distances, and some can fly over relatively high fences. The feet and shank portions of the legs have scales.

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