Peafowl
Encyclopedia
Peafowl are two Asiatic species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of flying bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

s in the genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Pavo of the pheasant
Pheasant
Pheasants refer to some members of the Phasianinae subfamily of Phasianidae in the order Galliformes.Pheasants are characterised by strong sexual dimorphism, males being highly ornate with bright colours and adornments such as wattles and long tails. Males are usually larger than females and have...

 family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

, Phasianidae
Phasianidae
The Phasianidae is a family of birds which consists of the pheasants and partridges, including the junglefowl , Old World Quail, francolins, monals and peafowl. The family is a large one, and is occasionally broken up into two subfamilies, the Phasianinae, and the Perdicinae...

, best known for the male's extravagant eye-spotted tail
Tail
The tail is the section at the rear end of an animal's body; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammals, reptiles, and birds...

, which it displays as part of courtship
Courtship
Courtship is the period in a couple's relationship which precedes their engagement and marriage, or establishment of an agreed relationship of a more enduring kind. In courtship, a couple get to know each other and decide if there will be an engagement or other such agreement...

. The male is called a peacock, the female a peahen, and the offspring peachicks. The adult female peafowl is grey and/or brown. Peachicks can be between yellow and a tawny colour with darker brown patches.

The species are:
  • Indian Peafowl
    Indian Peafowl
    The Indian Peafowl or Blue Peafowl is a large and brightly coloured bird of the pheasant family native to South Asia, but introduced and semi-feral in many other parts of the world...

    , Pavo cristatus, a resident breeder in South Asia
    South Asia
    South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

    . The peacock is designated as the national bird of India
    India
    India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

     and the provincial bird of Punjab
    Punjab (India)
    Punjab ) is a state in the northwest of the Republic of India, forming part of the larger Punjab region. The state is bordered by the Indian states of Himachal Pradesh to the east, Haryana to the south and southeast and Rajasthan to the southwest as well as the Pakistani province of Punjab to the...

    .
  • Green Peafowl
    Green Peafowl
    The Green Peafowl or Javan Peafowl, Pavo muticus is a large Galliform bird that is found in the tropical forests of Southeast Asia...

    , Pavo muticus. Breeds from Burma east to Java. The IUCN lists the Green Peafowl as vulnerable to extinction due to hunting and a reduction in extent and quality of habitat.

Plumage

The male (peacock) Indian Peafowl has iridescent blue-green or green coloured plumage. The peacock tail ("train") is not the tail quill feathers but the highly elongated upper tail coverts. The "eyes" are best seen when the peacock fans its tail. Like a cupped hand behind the ear the erect tail-fan of the male helps direct sound to the ears. Both species have a crest atop the head. The female (peahen) Indian Peafowl has a mixture of dull green, brown, and grey in her plumage. She lacks the long upper tail coverts of the male but has a crest. The female can also display her plumage to ward off female competition or signal danger to her young.

The Green Peafowl appears different from the Indian Peafowl. The male has green and gold plumage and has an erect crest. The wings are black with a sheen of blue. Unlike the Indian Peafowl, the Green Peahen is similar to the male, only having shorter upper tail coverts and less iridescence. It is difficult to tell a juvenile male from an adult female.

As with many birds, vibrant plumage colours are not primarily pigments, but optical interference Bragg reflections, based on regular, periodic nanostructures of the barbules (fiber-like components) of the feathers. Slight changes to the spacing result in different colours. Brown feathers are a mixture of red and blue: one colour is created by the periodic structure, and the other is a created by a Fabry–Pérot interference peak from reflections from the outer and inner boundaries. Such interference-based structural colour is important for the peacock's iridescent hues that change and shimmer with viewing angle, since unlike pigments, interference effects depend on light angle.

Colour mutations exist through selective breeding, such as the leucistic
Leucistic
Leucism is a condition characterized by reduced pigmentation in animals and humans. Unlike albinism, it is caused by a reduction in all types of skin pigment, not just melanin.- Details :...

 White Peafowl and the Black-Shouldered Peafowl.

Evolution

Charles Darwin
Charles Darwin
Charles Robert Darwin FRS was an English naturalist. He established that all species of life have descended over time from common ancestry, and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection.He published his theory...

 first theorized in On the Origin of Species that the peacock's plumage had evolved through sexual selection
Sexual selection
Sexual selection, a concept introduced by Charles Darwin in his 1859 book On the Origin of Species, is a significant element of his theory of natural selection...

. This idea was expounded upon in his second book, The Descent of Man and Selection in Relation to Sex.
Seven year study of free living peacocks, conducted in Japan came to the conclusion that female peahens are virtually indifferent towards the male display of plumage. This study cast serious doubts on a long held belief of the role of sexual selection in forming the brilliant plumage of male peacock.

Joseph Jordania
Joseph Jordania
Joseph Jordania is an Australian-Georgian ethnomusicologist and evolutionary musicologist. In some early publications his name was spelled as Zhordania...

 recently suggested that brilliantly colored and oversized peacock tail (as well as piercing loud call) was designed by the forces of natural selection
Natural selection
Natural selection is the nonrandom process by which biologic traits become either more or less common in a population as a function of differential reproduction of their bearers. It is a key mechanism of evolution....

, not sexual selection
Sexual selection
Sexual selection, a concept introduced by Charles Darwin in his 1859 book On the Origin of Species, is a significant element of his theory of natural selection...

, and was primarily designed to intimidate rivals and competitors, not to attracting females

Behaviour

The peafowl are forest birds that nest on the ground but roost in trees. They are terrestrial feeders.

Both species of Peafowl are believed to be polygamous. However, it has been suggested that "females" entering a male Green Peafowl's territory are really his own juvenile or sub-adult young (K. B. Woods in lit. 2000) and that Green Peafowl are really monogamous in the wild. The male peacock flares out his feathers when he is trying to get the female's attention.

During the mating season they will often emit a very loud high-pitched cry. They also travel in hunting packs between ten and ninety.

Diet

Peafowl are omnivorous and eat most plant parts, flower petals, seed heads, insects and other arthropods, reptiles, and amphibians.

In common with other members of the Galliformes
Galliformes
Galliformes are an order of heavy-bodied ground-feeding domestic or game bird, containing turkey, grouse, chicken, New and Old World Quail, ptarmigan, partridge, pheasant, and the Cracidae. Common names are gamefowl or gamebirds, landfowl, gallinaceous birds or galliforms...

, males possess metatarsal spurs or "thorns" used primarily during intraspecific
Intraspecific antagonism
Intraspecific antagonism means a disharmonious or antagonistic interaction between two individuals of the same species. As such, it could be a sociological term, but was actually coined by Alan Rayner and Norman Todd working at Exeter University in the late 1970s, to characterise a particular kind...

 fights.

Feral populations

Peafowl have left captivity and developed permanent, free-roaming populations in India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, and England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

.
There are permanent feral populations in Metropolitan South Florida that are protected by law. Musters of peafowl are frequently seen in the Coconut Grove area of Miami and near Biscayne Bay in the municipalities of Palmetto Bay and Cutler Bay. They have been a source of controversy in Miami-Dade County for years. These peafowl may be descendents of birds dispersed by Hurricane Andrew from the Wings of Asia aviary at the Miami Dade Zoological Park and Gardens in 1992.

Cultural significance

In Hinduism
Hinduism
Hinduism is the predominant and indigenous religious tradition of the Indian Subcontinent. Hinduism is known to its followers as , amongst many other expressions...

, the Peacock is associated with Saraswati
Saraswati
In Hinduism Saraswati , is the goddess of knowledge, music, arts, science and technology. She is the consort of Brahma, also revered as His Shakti....

, a deity representing benevolence, patience, kindness, compassion and knowledge. Peacock is also the mount of Hindu God of war Murugan
Murugan
Murugan also called Kartikeya, Skanda and Subrahmanya, is a popular Hindu deity especially among Tamil Hindus, worshipped primarily in areas with Tamil influences, especially South India, Singapore, Sri Lanka, Malaysia, Mauritius and Reunion Island. His six most important shrines in India are the...

. The peacock is the steed of Kartikay, the brother of Ganesha. Similar to Saraswati, the Peacock is associated with Kwan-yin in Asian spirituality. Kwan-yin (or Quan Yin) is also an emblem of love, compassionate watchfulness, good-will, nurturing, and kind-heartedness. Legend tells us she chose to remain a mortal even though she could be immortal because she wished to stay behind and aid humanity in their spiritual evolution.
In Greco-Roman mythology the Peacock is identified with the goddess Hera
Hera
Hera was the wife and one of three sisters of Zeus in the Olympian pantheon of Greek mythology and religion. Her chief function was as the goddess of women and marriage. Her counterpart in the religion of ancient Rome was Juno. The cow and the peacock were sacred to her...

 (Juno
Juno (mythology)
Juno is an ancient Roman goddess, the protector and special counselor of the state. She is a daughter of Saturn and sister of the chief god Jupiter and the mother of Mars and Vulcan. Juno also looked after the women of Rome. Her Greek equivalent is Hera...

). The eyes upon the peacock's tail comes from Argus
Argus Panoptes
In Greek mythology, Argus Panoptes or Argos, guardian of the heifer-nymph Io and son of Arestor, was a primordial giant whose epithet "Panoptes", "all-seeing", led to his being described with multiple, often one hundred, eyes. The epithet Panoptes was applied to the Titan of the Sun, Helios, and...

 whose hundred eyes were placed upon the peacock's feathers by the goddess in memory of his role as the guard of Io
Io (mythology)
Io was, in Greek mythology, a priestess of Hera in Argos, a nymph who was seduced by Zeus, who changed her into a heifer to escape detection. His wife Hera set ever-watchful Argus Panoptes to guard her, but Hermes was sent to distract the guardian and slay him...

, a lover of Zeus
Zeus
In the ancient Greek religion, Zeus was the "Father of Gods and men" who ruled the Olympians of Mount Olympus as a father ruled the family. He was the god of sky and thunder in Greek mythology. His Roman counterpart is Jupiter and his Etruscan counterpart is Tinia.Zeus was the child of Cronus...

 that Hera had punished. The eyes are said to symbolize the vault of heaven and the "eyes" of the stars.

In Babylonia
Babylonia
Babylonia was an ancient cultural region in central-southern Mesopotamia , with Babylon as its capital. Babylonia emerged as a major power when Hammurabi Babylonia was an ancient cultural region in central-southern Mesopotamia (present-day Iraq), with Babylon as its capital. Babylonia emerged as...

 and Persia the Peacock is seen as a guardian to royalty, and is often seen in engravings upon the thrones of royalty.
In Christianity
Christianity
Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

, the peacock is an ancient symbol of eternal life
Eternal Life
"Eternal Life" is a song composed by Jeff Buckley and is track #9 on his album Grace. It also has a video. It is believed to have been influenced by a long-time love for Led Zeppelin's music and a wish to emulate them in this song...

. The Peacock symbolism represents the "all-seeing" church, along with the holiness and sanctity associated with it. Additionally, the Peacock represents resurrection, renewal and immortality within the spiritual teachings of Christianity. Themes of renewal are also linked to alchemical traditions to, as many schools of thought compare the resurrecting phoenix to the modern-day Peacock.
Melek Taus
Melek Taus
Melek Taus , the Peacock Angel, is the Yazidi name for the central figure of their faith.In the Yazidi belief system, God created the world and it is now in the care of a Heptad of seven Holy Beings, often known as Angels or heft sirr...

 ( - Kurdish Tawûsê Melek), the Peacock Angel, is the Yazidi
Yazidi
The Yazidi are members of a Kurdish religion with ancient Indo-Iranian roots. They are primarily a Kurdish-speaking people living in the Mosul region of northern Iraq, with additional communities in Transcaucasia, Armenia, Turkey, and Syria in decline since the 1990s – their members emigrating to...

 name for the central figure of their faith. The Yazidi consider Tawûsê Melek an emanation of God
God
God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

 and a benevolent angel who has redeemed himself from his fall and has become a demiurge
Demiurge
The demiurge is a concept from the Platonic, Neopythagorean, Middle Platonic, and Neoplatonic schools of philosophy for an artisan-like figure responsible for the fashioning and maintenance of the physical universe. The term was subsequently adopted by the Gnostics...

 who created the cosmos from the Cosmic egg
Cosmic Egg
Cosmic Egg is the second studio album by Australian rock band Wolfmother, released on 23 October 2009. It is the first album by the second lineup of the band, featuring vocalist, songwriter and lead guitarist Andrew Stockdale, bassist and keyboardist Ian Peres, rhythm guitarist Aidan Nemeth and...

. After he repented, he wept for 7,000 years, his tears filling seven jars, which then quenched the fires of hell
Hell
In many religious traditions, a hell is a place of suffering and punishment in the afterlife. Religions with a linear divine history often depict hells as endless. Religions with a cyclic history often depict a hell as an intermediary period between incarnations...

. In art and sculpture, Tawûsê Melek is depicted as a peacock. However, peacocks are not native to the lands where Tawûsê Melek is worshipped.

In 1956, John J. Graham created an abstraction of an eleven-feathered peacock logo for American broadcaster NBC
NBC
The National Broadcasting Company is an American commercial broadcasting television network and former radio network headquartered in the GE Building in New York City's Rockefeller Center with additional major offices near Los Angeles and in Chicago...

. This brightly hued peacock was adopted due to the increase in colour programming. NBC's first colour broadcasts showed only a still frame of the colourful peacock. The emblem made its first on-air appearance on May 22, 1956. The current version of the logo debuted in 1986 and has six feathers (yellow, orange, red, purple, blue, green).

A stylized peacock in full display is the logo for the Pakistan Television Corporation
Pakistan Television Corporation
The Pakistan Television Corporation is Pakistan's national television broadcaster. The first live transmission of PTV began on November 26, 1964, in Lahore...

.

External links

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