In zoological classification, peacocks belong to the class Aves, order Galliformes, family Phasianidae, and genus Pavo. Currently, there are only two species of peacocks that have been named. Among them, the green peacock (Pavo muticus), also known as the Java peacock, has three subspecies, namely the Yunnan subspecies (Pavo muticus imperator), the Indian subspecies (Pavo muticus spicifer), and the nominate subspecies (Pavo muticus muticus). The blue peacock (Pavo cristatus), also known as the Indian peacock.
The green peacock is distributed in Yunnan and Tibet in China, and in Bangladesh, Myanmar, Indochina and Java in Indonesia; the blue peacock is distributed in India and Sri Lanka.
Peacocks are omnivorous birds that mainly feed on plant-based feed. They like to eat fruits such as pear and yellow pear, and also eat rice grains, sprouts, grass seeds, etc. In addition, peacocks also prey on small animals such as termites, locusts, crickets, grasshoppers, small moths, frogs and lizards. Peacocks' foraging activities are very regular, usually concentrated in the early morning and evening. In the early morning, peacocks will go to the water source to drink water and clean their feathers, and then enter the woodland to forage; in the hot noon, they will choose to rest in the cool forest; and go out to forage again at dusk.
Clustering
Peacocks often move in pairs or groups of three or five. Generally, a male peacock will form a group with 3-5 female peacocks, with the male bird leading the way, the chicks in the middle, and the female birds at the back. When walking, the peacock will nod up and down from time to time, and stretch its neck to look around. The size of the green peacock group varies with the season. In winter, it usually gathers in large groups, while in other seasons it disperses into family groups.
Peacocks are alert by nature and prefer a quiet and comfortable environment. Once frightened, they often do not appear in the same place for several days. Peacocks are good at running. When in danger, they will run fast and flee to the dense bushes to avoid pursuit. In an emergency, peacocks can also fly short distances, usually at a height of no more than 10 meters, and descend slowly. Civets are the main natural enemies of peacocks, and clouded leopards occasionally prey on peacocks.
Peacocks practice a one-male-multiple-female breeding system. A male peacock can have two or more female mates, but each female peacock only mates with a specific male peacock. The breeding season of wild peacocks is from mid-February to May, with March to May being the peak breeding period; under artificial breeding conditions, the breeding period can be advanced or extended.
The word peacock was first seen in the "Sea Nei Jing" of the "Classic of Mountains and Seas": "There are peacocks", and "Kong" means big. "Yiwuzhi" written by Yang Fu in the Eastern Han Dynasty recorded the peacocks in Lingnan: "Peacocks are as big as wild geese but with high feet. Their feathers are all spotted and colorful. They are caught and kept, and they dance when they clap their hands." In ancient Chinese, peacocks are also written as "Kongjue" ("jue" is the same as "que"), or called "Kongniao", "Yueniao" and "Nanke". The peacock is considered to be one of the prototypes of the legendary phoenix in ancient Chinese legends.
The peacock has a long history of evolution, but because bird fossils are not easy to preserve and the number of Galliformes fossils is scarce, its exact origin time is still unclear. It is known that Galliformes birds had differentiated into new populations as early as 26 million years ago. In 2003, a peacock fossil from the middle and late Pliocene (about 26 million to 27 million years ago) found in Ethiopia provided conclusive evidence for the origin time of the peacock.
As of 2018, blue peacocks and green peacocks have been listed in the "Red List of Endangered Species of the World Conservation Union (IUCN)", of which green peacocks are endangered (EN) species and blue peacocks are least concern (LC) species. In 2021, China listed the green peacock as a national first-class protected wild animal. In 2023, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) listed the green peacock in Appendix II and the blue peacock in Appendix III.
