Chickens are omnivores. In the wild, they often dig in the soil for seeds, insects, lizards or mice. The lifespan of chickens can range from five to ten years depending on breed. The world’s oldest hen lives 16 years and is recorded in the Guinness Book of Records.
Cock often look different from hens by showy feathers, long and glossy tail, pointed feathers on the neck and back are usually lighter and darker. However, in some breeds like the Sebright the cock is the same color as the hen, with only a slight difference in the slightly pointed neck hair. Male-female can be distinguished based on the crest or the development of the spur in the leg. Adult chickens also have broochs on the neck below the beak. Both males and females have a crest and bibs, but in most breeds these traits are only prominent in males. In some breeds, a mutation occurs, resulting in a hair-like part of human hair under the head.