Chickens are birds, birds, pheasants, pheasants and pheasants. In zoological classification, chickens are divided into Chordata-Vertebrate Subdivision-Today's Bird Subdivision-Superorders similar to chickens-Pheasants-Primitive chickens. The types of chickens are turkey, black-bone chicken, pheasant and so on. Chicken is the most common poultry raised by human beings. Domestic chickens originated from pheasants, and their domestication history was at least about 4000 years, but it was not until about 1800 that chickens and eggs became mass-produced commodities.
Pheasant is a kind of pheasant, belonging to pheasant. Also known as Camellia chicken. As the ancestor of domestic chicken, it is now produced in China, Yunnan, Guangxi Zhuang Autonomous Region and Hainan Province.