Chicken
A rooster (left) and hen (right)
Conservation status
Domesticated
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Galliformes
Family:	Phasianidae
Subfamily:	Phasianinae
Genus:	Gallus
Species:	Gallus gallus
Subspecies:	Gallus gallus domesticus (Linnaeus, 1758)
Synonyms
Chicken : Cock or Rooster (m), Hen (f)

The chicken (Gallus gallus domesticus) is a domesticated fowl, a subspecies of the Red Junglefowl. As one of the most common and widespread domestic animals, and with a population of more than 24 billion in 2003,^[1] there are more chickens in the world than any other species of bird. Humans keep chickens primarily as a source of food, consuming both their meat and their eggs. The chicken's "cultural and culinary dominance" could be considered amazing to some in view of its believed domestic origin and purpose and it has "inspired contributions to culture, art, cuisine, science and religion"^[2] from antiquity to the present.

The traditional poultry farming view of the domestication of the chicken is stated in Encyclopædia Britannica (2007): "Humans first domesticated chickens of Indian origin for the purpose of cockfighting in Asia, Africa, and Europe. Very little formal attention was given to egg or meat production... "^[3] Recent genetic studies have pointed to multiple maternal origins in Southeast, East, and South Asia, but with the clade found in the Americas, Europe, the Middle East and Africa originating in the Indian subcontinent. From India the domesticated fowl made its way to the Persianized kingdom of Lydia in western Asia Minor, and domestic fowl were imported to Greece by the fifth century BC.^[4] Fowl had been known in Egypt since the 18th Dynasty, with the "bird that gives birth every day" having come to Egypt from the land between Syria and Shinar, Babylonia, according to the annals of Tutmose III.^[5][6]

Terminology[link]

In the UK, Ireland and Australia adult male chickens over the age of 12 months are primarily known as cocks, whereas in America and Canada they are more commonly called roosters. Males under a year old are cockerels.^[7] Castrated roosters are called capons (surgical and chemical castration are now illegal in some parts of the world). Females over a year old are known as hens, and younger females are pullets.^[8] In Australia and New Zealand (also sometimes in Britain), there is a generic term chook ( /ˈtʃʊk/) to describe all ages and both sexes.^[9] Babies are called chicks, and the meat is called chicken.

"Chicken" originally referred to chicks, not the species itself. The species as a whole was then called domestic fowl, or just fowl. This use of "chicken" survives in the phrase "Hen and Chickens", sometimes used as a British public house or theatre name, and to name groups of one large and many small rocks or islands in the sea (see for example Hen and Chicken Islands).

In the Deep South of the United States chickens are also referred to by the slang term yardbird.^[10]

General biology and habitat[link]

Chickens are omnivores.^[11] In the wild, they often scratch at the soil to search for seeds, insects and even larger animals such as lizards or young mice.^[12]

The adult rooster can be distinguished from the hen by his larger comb

Chickens may live for five to ten years, depending on the breed.^[13] The world's oldest chicken, a hen, died of heart failure at the age of 16 according to the Guinness Book of World Records.^[14]

Roosters can usually be differentiated from hens by their striking plumage of long flowing tails and shiny, pointed feathers on their necks (hackles) and backs (saddle) which are typically of brighter, bolder colors than those of females of the same species. However, in some breeds, such as the Sebright, the rooster has only slightly pointed neck feathers, the same color as the hen's. The identification must be made by looking at the comb, or eventually from the development of spurs on the male's legs (in a few breeds and in certain hybrids the male and female chicks may be differentiated by color). Adult chickens have a fleshy crest on their heads called a comb or cockscomb, and hanging flaps of skin either side under their beaks called wattles. Both the adult male and female have wattles and combs, but in most breeds these are more prominent in males. A muff or beard is a mutation found in several chicken breeds which causes extra feathering under the chicken's face, giving the appearance of a beard.

Wild Red Junglefowl

Domestic chickens are not capable of long distance flight, although lighter birds are generally capable of flying for short distances, such as over fences or into trees (where they would naturally roost). Chickens may occasionally fly briefly to explore their surroundings, but generally do so only to flee perceived danger.

Chickens are gregarious birds and live together in flocks. They have a communal approach to the incubation of eggs and raising of young. Individual chickens in a flock will dominate others, establishing a "pecking order", with dominant individuals having priority for food access and nesting locations. Removing hens or roosters from a flock causes a temporary disruption to this social order until a new pecking order is established. Adding hens—especially younger birds—to an existing flock can lead to violence and injury.^[15]

Hens will try to lay in nests that already contain eggs, and have been known to move eggs from neighboring nests into their own. Some farmers use fake eggs made from plastic or stone (or golf balls) to encourage hens to lay in a particular location. The result of this behavior is that a flock will use only a few preferred locations, rather than having a different nest for every bird.

Hens can also be extremely stubborn about always laying in the same location. It is not unknown for two (or more) hens to try to share the same nest at the same time. If the nest is small, or one of the hens is particularly determined, this may result in chickens trying to lay on top of each other.

Skull of a three-week-old chicken. Here the opisthotic bone appears in the occipital region, as in the adult Chelonian. bo = Basi-occipital, bt = Basi-temporal, eo = Opisthotic, f = Frontal, fm = Foramen magnum, fo = Fontanella, oc = Occipital condyle, op = Opisthotic, p = Parietal, pf = Post-frontal, sc = Sinus canal in supra-occipital, so = Supra-occpital, sq = Squamosal, 8 = Exit of vagus nerve.

Roosters crowing (a loud and sometimes shrill call) is a territorial signal to other roosters. However, crowing may also result from sudden disturbances within their surroundings. Hens cluck loudly after laying an egg, and also to call their chicks. Chickens also give a low "warning call" when they think they see a predator approaching.

In 2006, scientists researching the ancestry of birds "turned on" a chicken recessive gene, talpid2, and found that the embryo jaws initiated formation of teeth, like those found in ancient bird fossils. John Fallon, the overseer of the project, stated that chickens have "...retained the ability to make teeth, under certain conditions... ."^[16]

Food sharing and courting[link]

When a rooster finds food, he may call other chickens to eat first. He does this by clucking in a high pitch as well as picking up and dropping the food. This behavior may also be observed in mother hens to call their chicks and encourage them to eat.

To initiate courting, some roosters may dance in a circle around or near a hen ("a circle dance"), often lowering his wing which is closest to the hen.^[17] The dance triggers a response in the hen's brain,^[17] and when the hen responds to his "call", the rooster may mount the hen and proceed with the fertilization.

Breeding[link]

Origins[link]

The domestic chicken is descended primarily from the Red Junglefowl (Gallus gallus) and is scientifically classified as the same species.^[18] As such it can and does freely interbreed with populations of red jungle fowl.^[18] Recent genetic analysis has revealed that at least the gene for yellow skin was incorporated into domestic birds through hybridization with the Grey Junglefowl (G. sonneratii).^[19] The traditional poultry farming view is stated in Encyclopædia Britannica (2007): "Humans first domesticated chickens of Indian origin for the purpose of cockfighting in Asia, Africa, and Europe. Very little formal attention was given to egg or meat production... "^[3] In the last decade there have been a number of genetic studies. According to one study, a single domestication event occurring in the region of modern Thailand created the modern chicken with minor transitions separating the modern breeds.^[20] However, that study was later found to be based on incomplete data, and recent studies point to multiple maternal origins, with the clade found in the Americas, Europe, Middle East, and Africa, originating from the Indian subcontinent, where a large number of unique haplotypes occur.^[21][22]

It has been claimed (based on paleoclimatic assumptions) that chickens were domesticated in Southern China in 6000 BC.^[23] However, according to a recent study,^[24] "it is not known whether these birds made much contribution to the modern domestic fowl. Chickens from the Harappan culture of the Indus Valley (2500-2100 BC), in what today is Pakistan, may have been the main source of diffusion throughout the world."

A northern road spread chicken to the Tarim basin of central Asia. The chicken reached Europe (Romania, Turkey, Greece, Ukraine) about 3000 BC.^[25] Introduction into Western Europe came far later, about the 1st millennium BC. Phoenicians spread chickens along the Mediterranean coasts, to Iberia. Breeding increased under the Roman Empire, and was reduced in the Middle Ages.^[25] Middle East traces of chicken go back to a little earlier than 2000 BC, in Syria; chicken went southward only in the 1st millennium BC. The chicken reached Egypt for purposes of cock fighting about 1400 BC, and became widely bred only in Ptolemaic Egypt (about 300 BC).^[25] Little is known about the chicken's introduction into Africa. Three possible ways of introduction in about the early first millennium AD could have been through the Egyptian Nile Valley, the East Africa Roman-Greek or Indian trade, or from Carthage and the Berbers, across the Sahara. The earliest known remains are from Mali, Nubia, East Coast, and South Africa and date back to the middle of the first millennium AD.^[25] Domestic chicken in the Americas before Western conquest is still an ongoing discussion, but blue-egged chicken, found only in the Americas and Asia, suggest an Asian origin for early American chickens.^[25]

A lack of data from Thailand, Russia, the Indian subcontinent, Southeast Asia and Sub-Saharan Africa makes it difficult to lay out a clear map of the spread of chickens in these areas; better description and genetic analysis of local breeds threatened by extinction may also help with research into this area.^[25]

Current[link]

Chicken eggs vary in color depending on the hen, typically ranging from bright white to shades of brown and even blue, green, and recently reported purple (found in South Asia) (Araucana varieties).

Earliest gestation stages and blood circulation of a chicken embryo

Under natural conditions, most birds lay only until a clutch is complete, and they will then incubate all the eggs. Many domestic hens will also do this–and are then said to "go broody". The broody hen will stop laying and instead will focus on the incubation of the eggs (a full clutch is usually about 12 eggs). She will "sit" or "set" on the nest, protesting or pecking in defense if disturbed or removed, and she will rarely leave the nest to eat, drink, or dust-bathe. While brooding, the hen maintains the nest at a constant temperature and humidity, as well as turning the eggs regularly during the first part of the incubation. To stimulate broodiness, an owner may place many artificial eggs in the nest, or to stop it they may place the hen in an elevated cage with an open wire floor.

At the end of the incubation period (about 21 days),^[17] the eggs, if fertile, will hatch. Development of the egg starts only when incubation begins, so they all hatch within a day or two of each other, despite perhaps being laid over a period of two weeks or so. Before hatching, the hen can hear the chicks peeping inside the eggs, and will gently cluck to stimulate them to break out of their shells. The chick begins by "pipping"; pecking a breathing hole with its egg tooth towards the blunt end of the egg, usually on the upper side. The chick will then rest for some hours, absorbing the remaining egg yolk and withdrawing the blood supply from the membrane beneath the shell (used earlier for breathing through the shell). It then enlarges the hole, gradually turning round as it goes, and eventually severing the blunt end of the shell completely to make a lid. It crawls out of the remaining shell, and its wet down dries out in the warmth of the nest.

A day-old chick

The hen will usually stay on the nest for about two days after the first egg hatches, and during this time the newly hatched chicks live off the egg yolk they absorb just before hatching. Any eggs not fertilized by a rooster will not hatch, and the hen eventually loses interest in these and leaves the nest. After hatching, the hen fiercely guards the chicks, and will brood them when necessary to keep them warm, at first often returning to the nest at night. She leads them to food and water; she will call them to edible items, but seldom feeds them directly. She continues to care for them until they are several weeks old, when she will gradually lose interest and eventually start to lay again.

Modern egg-laying breeds rarely go broody, and those that do often stop part-way through the incubation. However, some "utility" (general purpose) breeds, such as the Cochin, Cornish and Silkie, do regularly go broody, and they make excellent mothers, not only for chicken eggs but also for those of other species—even those with much smaller or larger eggs and different incubation periods, such as quail, pheasants, turkeys or geese. Chicken eggs can also be hatched under a broody duck, with varied success.

Farming[link]

Egg-laying chicken 5 days out of battery cage Note typical pale comb

A free range rooster on a farm

More than 50 billion chickens are reared annually as a source of food, for both their meat and their eggs. More animals would be killed in farming for chicken or eggs to provide food for human.^[26]

The vast majority of poultry are raised using intensive farming techniques. According to the Worldwatch Institute, 74 percent of the world's poultry meat, and 68 percent of eggs are produced this way. One alternative to intensive poultry farming is free range farming.

Friction between these two main methods has led to long term issues of ethical consumerism. Opponents of intensive farming argue that it harms the environment, creates human health risks and is inhumane. Advocates of intensive farming say that their highly efficient systems save land and food resources due to increased productivity, stating that the animals are looked after in state-of-the-art environmentally controlled facilities.

In part due to the conditions on intensive poultry farms and recent recalls of large quantities of eggs, there is a growing movement for small scale micro-flocks or 'backyard chickens'. This involves keeping small numbers of hens (usually no more than a dozen), in suburban or urban residential areas to control bugs, utilize chicken waste as fertilizer in small gardens, and of course for the high-quality eggs and meat that are produced.

Reared for meat[link]

Chickens farmed for meat are called broiler chickens. Chickens will naturally live for 6 or more years, but broiler chickens typically take less than 6 weeks to reach slaughter size.^[27] A free range or organic meat chicken will usually be slaughtered at about 14 weeks of age.

Reared for eggs[link]

Chickens farmed for eggs are called egg-laying hens. In total, the UK alone consumes over 29 million eggs per day. Some hen breeds can produce over 300 eggs per year. After 12 months of laying, the commercial hen's egg-laying ability starts to decline to the point where the flock is unviable. Hens, particularly from battery cage systems, are sometimes infirm, have lost a significant amount of their feathers, and their life expectancy has been reduced from around 7 years to less than 2 years.^[28] In the UK and Europe, laying hens are then slaughtered and used in processed foods, or sold as "soup hens".^[28] In some other countries, flocks are sometimes force moulted, rather than being slaughtered, to reinvigorate egg-laying. This involves complete withdrawal of food (and sometimes water) for 7–14 days^[29] or sufficiently long to cause a body weight loss of 25 to 35%,^[30] or up to 28 days under experimental conditions^[31] which presumably reflect farming practice. This stimulates the hen to lose her feathers, but also reinvigorates egg-production. Some flocks may be force moulted several times. In 2003, more than 75% of all flocks were moulted in the US.^[32]

Artificial incubation[link]

An egg incubator.

Incubation can successfully occur artificially in machines that provide the correct, controlled environment for the developing chick.^{[33][34][35][36]} The average incubation period for chickens is 21 days but may depend on the temperature and humidity in the incubator. Temperature regulation is the most critical factor for a successful hatch. Variations of more than 1 °F (1.8 °C) from the optimum temperature of 99.5 °F (37.5 °C) will reduce hatch rates. Humidity is also important because the rate at which eggs lose water by evaporation depends on the ambient relative humidity. Evaporation can be assessed by candling, to view the size of the air sac, or by measuring weight loss. Relative humidity should be increased to around 70% in the last three days of incubation to keep the membrane around the hatching chick from drying out after the chick cracks the shell. Lower humidity is usual in the first 18 days to ensure adequate evaporation. The position of the eggs in the incubator can also influence hatch rates. For best results, eggs should be placed with the pointed ends down and turned regularly (at least three times per day) until one to three days before hatching. If the eggs aren't turned, the embryo inside may stick to the shell and may hatch with physical defects. Adequate ventilation is necessary to provide the embryo with oxygen. Older eggs require increased ventilation.

Many commercial incubators are industrial-sized with shelves holding tens of thousands of eggs at a time, with rotation of the eggs a fully automated process. Home incubators are boxes holding from half a dozen to 75 eggs; they are usually electrically powered, but in the past some were heated with an oil or paraffin lamp.

As food[link]

Eggs[link]

A fried chicken egg, "sunny side up".

Chicken eggs are widely used in many types of dishes, both sweet and savory, including many baked goods. Eggs can be scrambled, fried, hard-boiled, soft-boiled, pickled, and poached. The albumen, or egg white, contains protein but little or no fat, and can be used in cooking separately from the yolk. Egg whites may be aerated or whipped to a light, fluffy consistency and are often used in desserts such as meringues and mousse. Ground egg shells are sometimes used as a food additive to deliver calcium. Hens do not need a male to produce eggs, only to fertilize them. A flock containing only females will still produce eggs, however the eggs will all be infertile.

Chicken[link]

Roasted chicken.

The meat of the chicken, also called "chicken", is a type of poultry meat. Because of its relatively low cost, chicken is one of the most used meats in the world. Nearly all parts of the bird can be used for food, and the meat can be cooked in many different ways. Popular chicken dishes include roasted chicken, fried chicken, chicken soup, Buffalo wings, tandoori chicken, butter chicken, and chicken rice. Chicken is also a staple of many fast food restaurants.

As pets[link]

Chickens are sometimes kept as pets and can be tamed by hand feeding, but roosters can sometimes become aggressive and noisy, although aggression can be curbed with proper handling. Some have advised against keeping them around very young children. Certain breeds, however, such as silkies and many bantam varieties are generally docile and are often recommended as good pets around children with disabilities.^[37] Some people find chickens' behaviour entertaining and educational.^[38]

Diseases and ailments[link]

Chickens are susceptible to several parasites, including lice, mites, ticks, fleas, and intestinal worms, as well as other diseases. Despite the name, they are not affected by chickenpox, which is generally restricted to humans.^[39]

Some of the common diseases that affect chickens are shown below:

In religion and mythology[link]

May we be reminded that from antiquity "Chickens were, and still are, a sacred animal in some cultures"^[41] and deeply embedded within various belief systems and religious worship.

In Indonesia the chicken has great significance during the Hindu cremation ceremony. A chicken is considered a channel for evil spirits which may be present during the ceremony. A chicken is tethered by the leg and kept present at the ceremony for its duration to ensure that any evil spirits present during the ceremony go into the chicken and not the family members present. The chicken is then taken home and returns to its normal life. Similarly, within Agama Hindu Dharma religious beliefs and evil spirit appeasement within Hinduism as practiced in Indonesia, lay within this spiritual realm a required religious cockfight of the Balinese Hinduism spiritual appeasement exercise of Tabuh Rah(spilling blood), a sacred cockfight which in Balinese is known as tajen telung seet, (which otherwise would be a secular tajen, meklecan or ngadu) required at temple and purification (mecaru) ceremonies as a religious duty even today.^[42] That religious cockfight is not just allowed at every Balinese temple festival or religious ceremony, it is required,^[43] as a form of animal sacrifice.

In ancient Greece, the chicken was not normally used for sacrifices, perhaps because it was still considered an exotic animal. Because of its valor, the cock is found as an attribute of Ares, Heracles, and Athena. The alleged last words of Socrates as he died from hemlock poisoning, as recounted by Plato, were "Crito, I owe a cock to Asclepius; will you remember to pay the debt?", signifying that death was a cure for the illness of life.

The Greeks believed that even lions were afraid of cocks. Several of Aesop's Fables reference this belief.

In the New Testament, Jesus prophesied the betrayal by Peter: "Jesus answered, 'I tell you, Peter, before the rooster crows today, you will deny three times that you know me.'" (Luke 22:34) Thus it happened (Luke 22:61), and Peter cried bitterly. This made the cock a symbol for both vigilance and betrayal. The rooster(cock) serves as a tangible vessel of Christ for some as in the gospel of Matthew, Mark and Luke in the New Testament with Christ speaking through the cock.^[44] In the sixth century, Pope Gregory I declared the cock the emblem of Christianity^[45] and another Papal enactment of the ninth century by Pope Nicholas I^[46] ordered the figure of the cock to be placed on every church steeple.^[47]

Earlier, Jesus compares himself to a mother hen when talking about Jerusalem: "O Jerusalem, Jerusalem, you who kill the prophets and stone those sent to you, how often I have longed to gather your children together, as a hen gathers her chicks under her wings, but you were not willing." (Matthew 23:37; also Luke 13:34).

In many Central European folk tales, the devil is believed to flee at the first crowing of a cock.

In traditional Jewish practice, a kosher animal is swung around the head and then slaughtered on the afternoon before Yom Kippur, the Day of Atonement, in a ritual called kapparos;it is now common practice to cradle the bird and move it around the head. A chicken or fish is typically used because it is commonly available (and small enough to hold). The sacrifice of the animal is to receive atonement, for the animal symbolically takes on all the person's sins in kapparos. The meat is then donated to the poor. A woman brings a hen for the ceremony, while a man brings a rooster. Although not actually a sacrifice in the biblical sense, the death of the animal reminds the penitent sinner that his or her life is in God's hands.

The Talmud speaks of learning "courtesy toward one's mate" from the rooster (Eruvin 100b). This might refer to the fact that when a rooster finds something good to eat, he calls his hens to eat first. The Talmud likewise provides us with the statement "Had the Torah not been given to us, we would have learned modesty from cats, honest toil from ants, chastity from doves and gallantry from cocks"^[48] - (Jonathan ben Nappaha. Talmud: Erubin 100b), which may be further understood as to that of the gallantry of cocks being taken in the context of a religious instilling vessel of "a girt one of the loins"(Young's Literal Translation) that which is "stately in his stride" and "move with stately bearing" within the Book of Proverbs 30:29-31 as referenced by Michael V. Fox in his book Proverbs 10-31 where Saʻadiah ben Yosef Gaon(Saadia Gaon) identifies the definitive trait of "A cock girded about the loins" within Proverbs 30:31(Douay–Rheims Bible) as "the honesty of their behavior and their success"^[49], identifying a spiritual purpose of a religious vessel within that religious instilling schema of purpose and use.

The chicken is one of the Zodiac symbols of the Chinese calendar. Also in Chinese religion, a cooked chicken as a religious offering is usually limited to ancestor veneration and worship of village deities. Vegetarian deities such as the Buddha are not one of the recipients of such offerings. Under some observations, an offering of chicken is presented with "serious" prayer (while roasted pork is offered during a joyous celebration). In Confucian Chinese Weddings, a chicken can be used as a substitute for one who is seriously ill or not available (e.g. sudden death) to attend the ceremony. A red silk scarf is placed on the chicken's head and a close relative of the absent bride/groom holds the chicken so the ceremony may proceed. However, this practice is rare today.

A cockatrice was supposed to have been born from an egg laid by a rooster, as well as killed by a Rooster's call.

In history[link]

The Red Junglefowl

An early domestication of chickens in Southeast Asia is probable, since the word for domestic chicken (*manuk) is part of the reconstructed Proto-Austronesian language (see Austronesian languages). Chickens, together with dogs and pigs, were the domestic animals of the Lapita culture, the first Neolithic culture of Oceania.

The first pictures of chickens in Europe are found on Corinthian pottery of the 7th century BC. The poet Cratinus (mid-5th century BC, according to the later Greek author Athenaeus) calls the chicken "the Persian alarm". In Aristophanes's comedy The Birds (414 BC) a chicken is called "the Median bird", which points to an introduction from the East. Pictures of chickens are found on Greek red figure and black-figure pottery.

In ancient Greece, chickens were still rare and were a rather prestigious food for symposia. Delos seems to have been a center of chicken breeding.

The Romans used chickens for oracles, both when flying ("ex avibus", Augury) and when feeding ("auspicium ex tripudiis", Alectryomancy). The hen ("gallina") gave a favourable omen ("auspicium ratum"), when appearing from the left (Cic.,de Div. ii.26), like the crow and the owl.

For the oracle "ex tripudiis" according to Cicero (Cic. de Div. ii.34), any bird could be used, but normally only chickens ("pulli") were consulted. The chickens were cared for by the pullarius, who opened their cage and fed them pulses or a special kind of soft cake when an augury was needed. If the chickens stayed in their cage, made noises ("occinerent"), beat their wings or flew away, the omen was bad; if they ate greedily, the omen was good.

In 249 BC, the Roman general Publius Claudius Pulcher had his chickens thrown overboard when they refused to feed before the battle of Drepana, saying "If they won't eat, perhaps they will drink." He promptly lost the battle against the Carthaginians and 93 Roman ships were sunk. Back in Rome, he was tried for impiety and heavily fined.

In 161 BC, a law was passed in Rome that forbade the consumption of fattened chickens. It was renewed a number of times, but does not seem to have been successful. Fattening chickens with bread soaked in milk was thought to give especially delicious results. The Roman gourmet Apicius offers 17 recipes for chicken, mainly boiled chicken with a sauce. All parts of the animal are used: the recipes include the stomach, liver, testicles and even the pygostyle (the fatty "tail" of the chicken where the tail feathers attach).

The Roman author Columella gives advice on chicken breeding in his eighth book of his treatise on agriculture. He identifies Tanagrian, Rhodic, Chalkidic and Median (commonly misidentified as Melian) breeds, which have an impressive appearance, a quarrelsome nature and were used for cockfighting by the Greeks. For farming, native (Roman) chickens are to be preferred, or a cross between native hens and Greek cocks. Dwarf chickens are nice to watch because of their size but have no other advantages.

Per Columella, the ideal flock consists of 200 birds, which can be supervised by one person if someone is watching for stray animals. White chickens should be avoided as they are not very fertile and are easily caught by eagles or goshawks. One cock should be kept for five hens. In the case of Rhodian and Median cocks that are very heavy and therefore not much inclined to sex, only three hens are kept per cock. The hens of heavy fowls are not much inclined to brood; therefore their eggs are best hatched by normal hens. A hen can hatch no more than 15-23 eggs, depending on the time of year, and supervise no more than 30 hatchlings. Eggs that are long and pointed give more male, rounded eggs mainly female hatchlings.

Per Columella, chicken coops should face southeast and lie adjacent to the kitchen, as smoke is beneficial for the animals. Coops should consist of three rooms and possess a hearth. Dry dust or ash should be provided for dust-baths.

According to Columella, chicken should be fed on barley groats, small chick-peas, millet and wheat bran, if they are cheap. Wheat itself should be avoided as it is harmful to the birds. Boiled ryegrass (Lollium sp.) and the leaves and seeds of alfalfa (Medicago sativa L.) can be used as well. Grape marc can be used, but only when the hens stop laying eggs, that is, about the middle of November; otherwise eggs are small and few. When feeding grape marc, it should be supplemented with some bran. Hens start to lay eggs after the winter solstice, in warm places around the first of January, in colder areas in the middle of February. Parboiled barley increases their fertility; this should be mixed with alfalfa leaves and seeds, or vetches or millet if alfalfa is not at hand. Free-ranging chickens should receive two cups of barley daily.

Columella advises farmers to slaughter hens that are older than three years, because they no longer produce sufficient eggs.

Capons were produced by burning out their spurs with a hot iron. The wound was treated with potter's chalk.

For the use of poultry and eggs in the kitchens of ancient Rome see Roman eating and drinking.

Chickens were spread by Polynesian seafarers and reached Easter Island in the 12th century AD, where they were the only domestic animal, with the possible exception of the Polynesian Rat (Rattus exulans). They were housed in extremely solid chicken coops built from stone.

South America[link]

An unusual variety of chicken that has its origins in South America is the araucana, bred in southern Chile by Mapuche people. Araucanas, some of which are tailless and some of which have tufts of feathers around their ears, lay blue-green eggs. It has long been suggested that they predate the arrival of European chickens brought by the Spanish and are evidence of pre-Columbian trans-Pacific contacts between Asian or Pacific Oceanic peoples, particularly the Polynesians and South America. In 2007, an international team of researchers reported the results of analysis of chicken bones found on the Arauco Peninsula in south central Chile. Radiocarbon dating suggested that the chickens were Pre-Columbian, and DNA analysis showed that they were related to prehistoric populations of chickens in Polynesia.^[50] These results appeared to confirm that the chickens came from Polynesia and that there were transpacific contacts between Polynesia and South America before Columbus's arrival in the Americas.^[51]

However, a later report looking at the same specimens concluded:

A published, apparently pre-Columbian, Chilean specimen and six pre-European Polynesian specimens also cluster with the same European/Indian subcontinental/Southeast Asian sequences, providing no support for a Polynesian introduction of chickens to South America. In contrast, sequences from two archaeological sites on Easter Island group with an uncommon haplogroup from Indonesia, Japan, and China and may represent a genetic signature of an early Polynesian dispersal. Modeling of the potential marine carbon contribution to the Chilean archaeological specimen casts further doubt on claims for pre-Columbian chickens, and definitive proof will require further analyses of ancient DNA sequences and radiocarbon and stable isotope data from archaeological excavations within both Chile and Polynesia.^[52]

See also[link]

Chicks before their first outing

• Abnormal behaviour of birds in captivity
• Unihemispheric slow-wave sleep
• Bantam (poultry)
• Chicken fat
• Chicken hypnotism
• Chicken or the egg
• Chickenpox
• Chook raffle - a type of raffle where the prize is a chicken.
• Feral chicken
• Gamebird hybrids - hybrids between chickens, peafowl, guineafowl and pheasants
• List of chicken breeds
• Rubber chicken
• Symbolic chickens
• Tastes like chicken
• "Why did the chicken cross the road?"

References[link]

Further reading[link]

• Green-Armytage, Stephen (October 2000). Extraordinary Chickens. Harry N. Abrams. ISBN 0-8109-3343-8. 
• Smith, Page; Charles Daniel (April 2000). The Chicken Book. University of Georgia Press. ISBN 0-8203-2213-X. 

External links[link]

Wikispecies has information related to: Chicken

Wikimedia Commons has media related to: Chicken

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David Weckl
Dave Weckl live with the Mike Stern Band in 2009
Background information
Born	(1960-01-08) January 8, 1960 (age 52)
Genres	Jazz, jazz fusion, post-bop
Instruments	Drums
Labels	GRP, Stretch
Website	www.daveweckl.com

Dave Weckl in July 2004

Playing with the Chick Corea Elektric Band at the Blue Note in New York in December 2007

Dave Weckl (born January 8, 1960) is a highly acclaimed jazz fusion drummer. Weckl attended Francis Howell High School in St. Charles, MO and graduated in 1978. He majored in jazz studies at the University of Bridgeport in Connecticut. Starting out on the New York fusion scene in the early 1980s, Weckl soon found himself working with artists such as Paul Simon, Madonna, George Benson, Michel Camilo, Robert Plant and Anthony Jackson. His most famous early work though, where his popularity blossomed, was with the Chick Corea Elektric Band from 1985 to 1991.

Weckl spent a total of seven years with Corea, during which he performed on numerous albums and also appeared with Corea's Akoustic Band.^[1][2] He augmented his work with Corea by continuing his session work and appearing often with the GRP All-Star Big Band. In addition, he recorded four albums in 1988 and 1989 with the Manhattan Jazz Quintet. Weckl has also released a series of instructional videotapes, and in 1990, he led his first solo date, Master Plan, for GRP. Heads Up followed in 1992, as well as Hard-Wired in 1994.^[2]

After leaving Corea's band, Weckl recorded and toured with guitarist Mike Stern.^[3] Under his own name, he has been the leader of ten recordings since 1990, seven of which as the Dave Weckl Band. Dave endorses Yamaha Drums, Sabian Cymbals and Vic Firth Drumsticks, all of whom he has assisted with the design of new products, such as Sabian's HHX Evolution and HHX Legacy cymbal lines.

Around 1996, his style and setup radically changed, in large part because of his studies with Freddie Gruber.

Drumheads[link]

Remo Coated Ambassadors (toms), Coated Ambassadors (snare), Coated Ambassador (bass), Weckl Bass Drum Muffle and Weckl Active Snare Dampening System

Discography[link]

Dave Weckl:

• 1990 – Master Plan (GRP records)
• 1992 – Heads Up (GRP records)
• 1994 – Hard Wired (GRP records)

Dave Weckl Band:

• 1998 – Rhythm of the Soul (Stretch records)
• 1999 – Synergy (Stretch records)
• 2000 – Transition (Stretch records)
• 2001 – The Zone (Stretch records)
• 2002 – Perpetual Motion (Stretch records)
• 2003 – Live (And Very Plugged In) (Stretch records)
• 2005 – Multiplicity (Stretch records)

Videos[link]

• 1988 – Back to Basics (DCI music)
• 1990 – The Next Step (DCI music)
• 1993 – Working It Out: Latin Percussion I - With Walfredo Reyes Sr. (DCI music)
• 1993 – Working It Out: Latin Percussion II - With Walfredo Reyes Sr. (DCI Music)
• 2000 – How to Develop Your Own Sound (Carl Fischer publishing)
• 2000 – How to Practice (Carl Fischer publishing)
• 2000 – How to Develop Technique (Carl Fischer publishing)

Books[link]

• 1988 – Back to Basics
• 1992 – The Next Step (Manhattan Music)
• 1994 – Contemporary Drummer + One (Manhattan Music)
• 1997 – Ultimate Play-Along for Drums level I vol. I (Alfred Publishing Company)
• 1997 – Ultimate Play-Along for Drums level I vol. II (Alfred Publishing Company)
• 2001 – In Session with the Dave Weckl Band (Carl Fischer Music)
• 2004 – Exercises for Natural Playing (Carl Fischer Music)

Endorsers[link]

• Yamaha Drums
• Sabian Cymbals
• Vic Firth Sticks & Mallets
• Remo Drumheads
• Shure Microphones
• Latin Percussion
• M-Audio
• XL Cases

Notes[link]

1. ^ Freedman, Stefanee (9 March 2006). "Dave Weckl: Rhythm Talk". AllAboutJazz.com. http://www.allaboutjazz.com/php/article.php?id=20315. Retrieved 27 March 2010. 
2. ^ ^{a b} Huey, Steve. "Dave Weckl Biography". Allmusic. http://www.allmusic.com/artist/p136772/biography. Retrieved 27 March 2010. 
3. ^ "Dave Weckl at All About Jazz". http://www.allaboutjazz.com/php/musician.php?id=11238. Retrieved 27 March 2010. 

External links[link]

• Official site
• Dave Weckl on Drummerworld
• Dave Weckl at OnlineDrummer.com - Contains video clips.

Dave Chappelle
Dave Chappelle, 2007
Birth name	David Khari Webber Chappelle
Born	(1973-08-24) August 24, 1973 (age 38) Washington, D.C., U.S.[1]
Medium	Stand-up, television, film
Nationality	American
Years active	1987–present
Genres	Satire/political satire, improvisational comedy, observational comedy, surreal humor, sketch comedy, black comedy, blue comedy
Subject(s)	Racism, race relations, American politics, African American culture, pop culture, recreational drug use, human sexuality, morality
Influences	Richard Pryor,[2] Eddie Murphy,[2] Mel Blanc,[2] Chris Rock[3]
Spouse	Elaine Chappelle (2001–present) 3 children
Notable works and roles	Himself and Various in Chappelle's Show Himself in Dave Chappelle's Block Party Achoo in Robin Hood: Men in Tights Thurgood Jenkins in Half Baked
Signature

David Khari Webber "Dave" Chappelle^[4] (/ʃəˈpɛl/; born August 24, 1973)^[1] is an American comedian, screenwriter, television/film producer, actor, and artist. Chappelle began his film career in the film Robin Hood: Men in Tights in 1993 and continued to star in minor roles in the films The Nutty Professor, Con Air, and Blue Streak. His first lead role in a film was in Half Baked in 1998. In 2003, he became widely known for his popular sketch comedy television series, Chappelle's Show, which ran until his abrupt retirement from the show in 2005. Chappelle is ranked forty-third in Comedy Central Presents: 100 Greatest Stand-Ups of All Time.^[5]

Early life[link]

Chappelle was born David Khari Webber Chappelle in Washington, D.C. on August 24, 1973.^[1][2] His father, William David Chappelle III, was a professor at Antioch College in Yellow Springs, Ohio.^[2] His mother, Yvonne (née Reed), was a professor at Howard University, Prince George's Community College, and the University of Maryland and is also a Unitarian Universalist minister.^[6][7][8] Chappelle grew up in Silver Spring, Maryland and attended Woodlin Elementary School.^[2] During young Chappelle's formative years, his comic inspiration came from various comedians, particularly Eddie Murphy and Richard Pryor.^[2]

After his parents separated, Chappelle stayed in Washington with his mother while spending summers with his father in Ohio. In 1991, he graduated from Washington's Duke Ellington School of the Arts where he studied theatre arts.^[2]

Chappelle moved to New York City to pursue a career as a comedian. He gathered the courage to perform at Harlem's famed Apollo Theater in front of the infamous "Amateur Night" audience. The performance resulted in him being booed off the stage. Chappelle has described the experience as the moment that gave him the courage to continue his show business aspirations.^[2] He quickly made a name for himself in the New York comedy circuit, even performing in the city's parks. At the age of 19, Chappelle made his film debut as "Ahchoo" in Mel Brooks' Robin Hood: Men in Tights. In the same year, Chappelle was offered the role of Benjamin Buford "Bubba" Blue in Forrest Gump. Concerned about what seemed to be a racially demeaning character, he turned down the part; the film would go on to win Academy Award for Best Picture that year. He has since admitted to regretting the decision.^[9] Chappelle played another supporting movie role in 1994's little-seen Getting In.

He attracted the attention of TV network executives and developed numerous pilots but none of them were picked up for series.^[2][10] In 1995, he made a guest appearance in an episode of ABC's highly rated sitcom Home Improvement. The storyline had Chappelle and real-life friend comedian Jim Breuer ask Tim Taylor for advice on their girlfriends. The characters' single outing in the episode proved so popular that ABC decided to give them their own spin-off sitcom titled Buddies. However, after taping a pilot episode, Jim Breuer was fired and replaced with actor Christopher Gartin. Buddies premiered in March 1996 to disappointing ratings. The show was cancelled after only four episodes out of thirteen that were produced. Nine years later, in May 2005, ten of the episodes were released on a single-disc DVD to capitalize on Chappelle's new-found fame.

After the failure of Buddies, Chappelle starred in another pilot. According to Chappelle, the network was uncomfortable with the African-American cast and wanted white actors added. Chappelle resisted and subsequently accused the network of racism. Shortly after this incident, Chappelle's father died. Chappelle returned to Ohio and considered leaving the entertainment business.^[2][10]

He later appeared as a nightclub comedian in the 1996 comedy The Nutty Professor starring Eddie Murphy, one of his major comedic influences. He also had a minor role in 1997's Con Air. He and Neal Brennan co-wrote the 1998 cult stoner film Half Baked, Chappelle's first starring role, about a group of marijuana-smoking friends trying to get their friend out of jail. That same year, he appeared in "Pilots and Pens Lost", a 1998 episode of The Larry Sanders Show's sixth season, in which he and the executives of the show's nameless television network satirized the treatment to which scriptwriters and show creators were subjected, as well as the executives' knee-jerk tendencies toward racial stereotypes. In December of that year Chappelle appeared as Tom Hanks' friend and confidant in You've Got Mail. In 1999, he appeared in the Martin Lawrence film Blue Streak.

In 2000, Chappelle recorded his first HBO special, Dave Chappelle: Killin' Them Softly, in Washington, DC.^[11] He followed this up with an appearance as "Conspiracy Brother" in the 2002 racial satire Undercover Brother.

[edit] 2003–2006: Standup and Chappelle's Show

In 2003, Chappelle debuted his own weekly sketch comedy show on Comedy Central called Chappelle's Show. The show parodied many aspects of American culture including racial stereotypes, politics and pop culture. Along with comedy skits, the show also featured musical performances by mostly hip-hop and soul artists.

Chappelle's pointed social and political commentary quickly helped the show garner critical and commercial success as well as controversy.^[10][12] Richard Pryor, one of Chappelle's comedic influences, was a fan of the show and stated that he had "passed the torch" to Chappelle.^[10] Chappelle received two Emmy nominations for the show.^[13] Additionally, the DVD set became the best-selling DVD of a television show to date, overtaking the previous best-selling, The Simpsons first season DVD. It had sold over 3 million copies.^[14] Due to the show's popularity, Comedy Central's parent company Viacom reportedly offered Chappelle a $55 million contract (giving Chappelle a share of DVD sales) to continue production of Chappelle's Show for two more years while allowing him to do side projects. Chappelle had stated that sketches are not his favorite form of comedy, and that the characteristics of the show's format were somewhat like short films.

In June 2004, based on the popularity of the "Rick James" sketch, it was announced that Chappelle was in talks to portray Rick James in a biopic from Paramount Pictures (also owned by Viacom).^[15] James's estate disagreed with the proposed comical tone of the film and put a halt to the talks.^[16]

In 2004, Chappelle recorded his second comedy special, this time airing on Showtime - Dave Chappelle: For What It's Worth, at San Francisco's Fillmore Auditorium.^[17]

Season three turbulence[link]

In a June 2004 stand-up performance in Sacramento, California, Chappelle walked off the stage after berating his audience for constantly shouting "I'm Rick James, bitch!," which became a catchphrase from the popular "Rick James" sketch. After a few minutes, Chappelle returned and continued by saying, "The show is ruining my life." He stated that he disliked working "20 hours a day" and that the popularity of the show was making it difficult for him to continue his stand-up career, which was "the most important thing" to him. He also told the audience:

You know why my show is good? Because the network officials say you're not smart enough to get what I'm doing, and every day I fight for you. I tell them how smart you are. Turns out, I was wrong. You people are stupid.^[18]

Season 3 was scheduled to air on May 31, 2005, but in that month, Chappelle stunned fans and the entertainment industry when he abruptly left during production of the third season of Chappelle's Show and took a trip to South Africa. Chappelle has since stated that he was unhappy with the direction the show had taken.

Coming here I don't have the distractions of fame. It quiets the ego down. I'm interested in the kind of person I've got to become. I want to be well rounded and the industry is a place of extremes. I want to be well balanced. I've got to check my intentions, man.^[19]

Return[link]

In June 2005, Chappelle performed impromptu stand-up shows in Los Angeles.^[20][21][22] He then went on a tour that began in Newport, Kentucky, not far from his Ohio home.^[23] He also made a surprise appearance on HBO's Def Poetry where he performed two poems, titled Fuck Ashton Kutcher and How I Got the Lead on "Jeopardy!."^[24] He was interviewed for Inside the Actors Studio on December 18, 2005 at Pace University's Michael Schimmel Center for the Arts. The show premiered on February 12, 2006.^[25] Chappelle stated that the death of his father in 1998 had an impact on his decision to go to South Africa. By throwing himself into his work, he had not taken a chance to mourn his father's death. He also said the rumors that he was in drug or psychiatric treatment only persuaded him to stay in South Africa.^[2]

He continued:

I would go to work on the show and I felt awful every day, that's not the way it was. ... I felt like some kind of prostitute or something. If I feel so bad, why keep on showing up to this place? I'm going to Africa. The hardest thing to do is to be true to yourself, especially when everybody is watching.

Chappelle also said that he felt some of his sketches were "socially irresponsible."^[26][27] He singled out the "pixie sketch" in which pixies appear to people and encourage them to reinforce stereotypes of their races. In the sketch, Chappelle is wearing blackface and is dressed as a character in a minstrel show.^[28] According to Chappelle, during the filming of the sketch, a crew member was laughing in a way that made him feel uncomfortable and made him rethink the show.^[26][27] Chappelle said, "it was the first time I felt that someone was not laughing with me but laughing at me."^[26]

During these interviews, Chappelle did not rule out returning to Chappelle's Show to "finish what we started," but promised that he would not return without changes to the production, such as a better working environment. He also stated he would like to donate half of the DVD sales to charity.^[29] Chappelle expressed disdain at the possibility of his material from the unfinished third season being aired, saying that to do so would be "a bully move," and that he would not return to the show if Comedy Central were to air the unfinished material.^[27] On July 9, 2006, Comedy Central aired the first episode of Chappelle's Show: The Lost Episodes. An uncensored DVD release of the episodes was made available on July 25.

The show still plays in syndication on several television networks despite the relatively small number of episodes compared to most American syndicated television programs.^{[citation needed]}

[edit] Dave Chappelle's Block Party

The site of Dave Chappelle's Block Party in Brooklyn.

Chappelle was the star and producer of the Michel Gondry-directed documentary Dave Chappelle's Block Party, which chronicles a Chappelle-hosted concert in the Clinton Hill neighborhood of Brooklyn on September 18, 2004. Several musical artists, including Kanye West, The Roots, Erykah Badu, Mos Def, Dead Prez and Jill Scott are featured in the movie both performing in the concert and in conversation off-stage. The most surprising highlight of the event was the "last minute" reunion of popular 1990s hip hop group The Fugees. Chappelle toured several cities in February and March 2006 to promote the film under the moniker "Block Party All-Stars featuring Dave Chappelle". Universal Pictures' genre division Rogue Pictures released the film in the United States on March 3, 2006.

2007–present[link]

In April 2007, Chappelle set a stand-up endurance record at the Laugh Factory Sunset Strip comedy club, beating comedian Dane Cook's record of 3 hours and 50 minutes. In December of the same year, Chappelle broke his own record with a time of 6 hours and 12 minutes. Cook reclaimed the record in January 2008, with a time of 7 hours.^[30] On November 19, 2009 Chappelle performed at the Laugh Factory in Los Angeles, where it was speculated that he would aim to take back the record. However, he was disqualified according to the club owner, after he left the stage, five hours into his routine.^[31]

Chappelle again appeared on Inside the Actors Studio and in celebration of the show's 200th episode, he humorously interviewed the show's usual host, James Lipton. The episode aired on November 11, 2008.

Personal life[link]

Chappelle lives with his wife Elaine, two sons,^[28] Sulayman^[32] and Ibrahim,^[33] and daughter Sonal, on a 65-acre (260,000 m²) farm,^[2][10] just outside Yellow Springs, Ohio.^[23] He also owns several houses in Xenia, Ohio. Regarding his home in Yellow Springs, Ohio, Chappelle says, "Turns out you don't need $50 million to live around these parts, just a nice smile and a kind way about you. You guys are the best neighbors ever," he stated at a blues and jazz festival in the town in mid-September 2006. "That's why I came back and that's why I'm staying."^[34]

Chappelle is a Muslim, having converted to Islam in 1998. He told Time Magazine in a May 2005 interview, "I don’t normally talk about my religion publicly because I don’t want people to associate me and my flaws with this beautiful thing. And I believe it is beautiful if you learn it the right way."^[35]

Filmography[link]

This section requires expansion.

Discography[link]

References[link]