Helmeted Guineafowl
Encyclopedia
The Helmeted Guineafowl (Numida meleagris) is the best known of the guineafowl
bird
family, Numididae, and the only member of the genus Numida. It breeds in Africa
, mainly south of the Sahara
, and has been widely introduced into the West Indies, Brazil
, Australia
and southern France
.
It breeds in warm, fairly dry and open habitats with scattered shrub
s and tree
s such as savanna
or farmland. Males often show aggression towards each other, and will partake in ravenous fighting which will leave other males bloodied and otherwise injured. Attempts at making themselves look fearsome is when their wings raise upwards from their sides and feathers bristle across the length of the body, or they may also rush forwards with a gaping beak. The nest is a well-hidden, generally unlined scrape and a clutch is normally 6-12 eggs which the female incubates for 26–28 days. Nests containing larger numbers of eggs are generally believed to be the result of more than one hen using the nest; eggs are large and an incubating bird could not realistically cover significantly more than a normal clutch.
Domestic birds at least, are notable for producing extremely thick-shelled eggs that are reduced to fragments as the chicks hatch, rather than leaving two large sections and small chips from where any chick has removed the end of the egg. It has been noted that domesticated Guineahens are not the best of mothers, and will often abandon their nests.
The chicks are cryptically coloured and rapid wing growth enables them to flutter onto low branches barely a week after hatching. These guineafowl live as long as 12 years in the wild.
The Helmeted Guineafowl is a large (53–58 cm) bird with a round body and small head. They weigh about 1.3 kg. The body plumage
is gray-black spangled with white. Like other guineafowl, this species has an unfeathered head, in this case decorated with a dull yellow or reddish bony knob, and red and blue patches of skin. The wings are short and rounded, and the tail is also short. Various sub-species are proposed, differences in appearance being mostly a large variation in shape, size and colour of the casque and facial wattles.
This is a gregarious species, forming flocks outside the breeding season typically of about 25 birds that also roost communally. Guineafowl are particularly well-suited to consuming massive quantities of ticks, which might otherwise spread lyme disease
. These birds are terrestrial, and prone to run rather than fly when alarmed. Like most gallinaceous birds, they have a short-lived explosive flight and rely on gliding to cover extended distances. Helmeted Guineafowl are great runners, and can walk 10 km and more in a day. They make loud harsh calls when disturbed. Their diet consists of a variety of animal and plant food; seeds, fruits, greens, snails, spiders, worms and insects, frogs, lizards, small snakes and small mammals. Guineafowl are equipped with strong claws and scratch in loose soil for food much like domestic chickens, although they seldom uproot growing plants in so doing. As with all of the numididae, they have no spurs.
Flocks of guineafowl have flourished in recent years in the Southern Suburbs of Cape Town, where they seem to have adapted remarkably well. The flocks move slowly the quieter suburban roads, looking for food on the grassy 'pavements' and in gardens where the fence is low enough for some to enter without feeling separated from the flock. They often roost at night on the roofs of bungalows. While residents generally appreciate the local wildlife, it can be a nuisance, obstructing traffic and making a lot of noise in the early morning. Their success is probably due to the large but cautious flock - they can fend off cats, do not enter gardens with dogs, and are visible enough in the quiet roads in which they live to avoid being run over. Although many young guineafowl manage to fall down drains (and are left behind by the flock), it is not enough to restrain their numbers. Adult birds are sometimes caught and eaten by the homeless.
In the early days of the Europe
an colonisation of North America
, the native Wild Turkey
(Meleagris gallopavo) was confused with this species. This led to the English
name of the American bird, since Turkey
and Guinea
were equally far-off and exotic places. The word meleagris, Greek
for guineafowl, is also shared in the scientific names of the two species, although for the guineafowl it is the species name, whereas for the turkey, it is the name of the genus and (in an altered state) the family.
that is sold in Western supermarkets.
:
Guineafowl
The guineafowl are a family of birds in the Galliformes order, although some authorities include the guineafowl as a subfamily, Numidinae, of the family Phasianidae...
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...
family, Numididae, and the only member of the genus Numida. It breeds in Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
, mainly south of the Sahara
Sahara
The Sahara is the world's second largest desert, after Antarctica. At over , it covers most of Northern Africa, making it almost as large as Europe or the United States. The Sahara stretches from the Red Sea, including parts of the Mediterranean coasts, to the outskirts of the Atlantic Ocean...
, and has been widely introduced into the West Indies, Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
and southern France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
.
It breeds in warm, fairly dry and open habitats with scattered shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...
s and tree
Tree
A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...
s such as savanna
Savanna
A savanna, or savannah, is a grassland ecosystem characterized by the trees being sufficiently small or widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses.Some...
or farmland. Males often show aggression towards each other, and will partake in ravenous fighting which will leave other males bloodied and otherwise injured. Attempts at making themselves look fearsome is when their wings raise upwards from their sides and feathers bristle across the length of the body, or they may also rush forwards with a gaping beak. The nest is a well-hidden, generally unlined scrape and a clutch is normally 6-12 eggs which the female incubates for 26–28 days. Nests containing larger numbers of eggs are generally believed to be the result of more than one hen using the nest; eggs are large and an incubating bird could not realistically cover significantly more than a normal clutch.
Domestic birds at least, are notable for producing extremely thick-shelled eggs that are reduced to fragments as the chicks hatch, rather than leaving two large sections and small chips from where any chick has removed the end of the egg. It has been noted that domesticated Guineahens are not the best of mothers, and will often abandon their nests.
The chicks are cryptically coloured and rapid wing growth enables them to flutter onto low branches barely a week after hatching. These guineafowl live as long as 12 years in the wild.
The Helmeted Guineafowl is a large (53–58 cm) bird with a round body and small head. They weigh about 1.3 kg. The body plumage
Feather
Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds and some non-avian theropod dinosaurs. They are considered the most complex integumentary structures found in vertebrates, and indeed a premier example of a complex evolutionary novelty. They...
is gray-black spangled with white. Like other guineafowl, this species has an unfeathered head, in this case decorated with a dull yellow or reddish bony knob, and red and blue patches of skin. The wings are short and rounded, and the tail is also short. Various sub-species are proposed, differences in appearance being mostly a large variation in shape, size and colour of the casque and facial wattles.
This is a gregarious species, forming flocks outside the breeding season typically of about 25 birds that also roost communally. Guineafowl are particularly well-suited to consuming massive quantities of ticks, which might otherwise spread lyme disease
Lyme disease
Lyme disease, or Lyme borreliosis, is an emerging infectious disease caused by at least three species of bacteria belonging to the genus Borrelia. Borrelia burgdorferi sensu stricto is the main cause of Lyme disease in the United States, whereas Borrelia afzelii and Borrelia garinii cause most...
. These birds are terrestrial, and prone to run rather than fly when alarmed. Like most gallinaceous birds, they have a short-lived explosive flight and rely on gliding to cover extended distances. Helmeted Guineafowl are great runners, and can walk 10 km and more in a day. They make loud harsh calls when disturbed. Their diet consists of a variety of animal and plant food; seeds, fruits, greens, snails, spiders, worms and insects, frogs, lizards, small snakes and small mammals. Guineafowl are equipped with strong claws and scratch in loose soil for food much like domestic chickens, although they seldom uproot growing plants in so doing. As with all of the numididae, they have no spurs.
Flocks of guineafowl have flourished in recent years in the Southern Suburbs of Cape Town, where they seem to have adapted remarkably well. The flocks move slowly the quieter suburban roads, looking for food on the grassy 'pavements' and in gardens where the fence is low enough for some to enter without feeling separated from the flock. They often roost at night on the roofs of bungalows. While residents generally appreciate the local wildlife, it can be a nuisance, obstructing traffic and making a lot of noise in the early morning. Their success is probably due to the large but cautious flock - they can fend off cats, do not enter gardens with dogs, and are visible enough in the quiet roads in which they live to avoid being run over. Although many young guineafowl manage to fall down drains (and are left behind by the flock), it is not enough to restrain their numbers. Adult birds are sometimes caught and eaten by the homeless.
In the early days of the Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
an colonisation of North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
, the native Wild Turkey
Wild Turkey
The Wild Turkey is native to North America and is the heaviest member of the Galliformes. It is the same species as the domestic turkey, which derives from the South Mexican subspecies of wild turkey .Adult wild turkeys have long reddish-yellow to grayish-green...
(Meleagris gallopavo) was confused with this species. This led to the English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
name of the American bird, since Turkey
Turkey
Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...
and Guinea
Guinea
Guinea , officially the Republic of Guinea , is a country in West Africa. Formerly known as French Guinea , it is today sometimes called Guinea-Conakry to distinguish it from its neighbour Guinea-Bissau. Guinea is divided into eight administrative regions and subdivided into thirty-three prefectures...
were equally far-off and exotic places. The word meleagris, Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...
for guineafowl, is also shared in the scientific names of the two species, although for the guineafowl it is the species name, whereas for the turkey, it is the name of the genus and (in an altered state) the family.
Domestication
Helmeted Guineafowl are often domesticated, and it is this speciesSpecies
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...
that is sold in Western supermarkets.
Subspecies
There are nine recognized subspeciesSubspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
:
- N. m. coronatus (GurneyJohn Henry GurneyJohn Henry Gurney was an English banker, amateur ornithologist, and Liberal Party politician.-Life:Gurney was the only son of Joseph John Gurney of Earlham Hall, Norwich, Norfolk. At the age of ten he was sent to a private tutor at Leytonstone near the Epping Forest, where he met Henry Doubleday,...
, 1868) - Natal Helmeted Guineafowl - eastern South AfricaSouth AfricaThe Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans... - N. m. galeatus (PallasPeter Simon PallasPeter Simon Pallas was a German zoologist and botanist who worked in Russia.- Life and work :Pallas was born in Berlin, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University...
, 1767) - West African Guineafowl - western AfricaAfricaAfrica is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
to southern ChadChadChad , officially known as the Republic of Chad, is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west...
, central ZaireZaireThe Republic of Zaire was the name of the present Democratic Republic of the Congo between 27 October 1971 and 17 May 1997. The name of Zaire derives from the , itself an adaptation of the Kongo word nzere or nzadi, or "the river that swallows all rivers".-Self-proclaimed Father of the Nation:In...
, and northern AngolaAngolaAngola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city... - N. m. marungensis (SchalowHerman SchalowHerman Schalow , also incorrectly written Hermann Schalow, was a German ornithologist .Herman Schalow was a banker. He studied ornithology as an amateur with Jean Louis Cabanis and worked with Anton Reichenow...
, 1884) - Marungu Helmeted Guineafowl - south Congo BasinCongo BasinThe Congo Basin is the sedimentary basin that is the drainage of the Congo River of west equatorial Africa. The basin begins in the highlands of the East African Rift system with input from the Chambeshi River, the Uele and Ubangi Rivers in the upper reaches and the Lualaba River draining wetlands...
to western AngolaAngolaAngola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city...
and ZambiaZambiaZambia , officially the Republic of Zambia, is a landlocked country in Southern Africa. The neighbouring countries are the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west.... - N. m. meleagris (Linnaeus, 1758) - Saharan Helmeted Guineafowl - eastern ChadChadChad , officially known as the Republic of Chad, is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west...
to EthiopiaEthiopiaEthiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...
, northern ZaireZaireThe Republic of Zaire was the name of the present Democratic Republic of the Congo between 27 October 1971 and 17 May 1997. The name of Zaire derives from the , itself an adaptation of the Kongo word nzere or nzadi, or "the river that swallows all rivers".-Self-proclaimed Father of the Nation:In...
, UgandaUgandaUganda , officially the Republic of Uganda, is a landlocked country in East Africa. Uganda is also known as the "Pearl of Africa". It is bordered on the east by Kenya, on the north by South Sudan, on the west by the Democratic Republic of the Congo, on the southwest by Rwanda, and on the south by...
and northern KenyaKenyaKenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east... - N. m. mitratus (Pallas, 1764) - Tufted Guineafowl - TanzaniaTanzaniaThe United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...
to eastern MozambiqueMozambiqueMozambique, officially the Republic of Mozambique , is a country in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west and Swaziland and South Africa to the southwest...
, ZambiaZambiaZambia , officially the Republic of Zambia, is a landlocked country in Southern Africa. The neighbouring countries are the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west....
, and northern BotswanaBotswanaBotswana, officially the Republic of Botswana , is a landlocked country located in Southern Africa. The citizens are referred to as "Batswana" . Formerly the British protectorate of Bechuanaland, Botswana adopted its new name after becoming independent within the Commonwealth on 30 September 1966... - N. m. papilosus (ReichenowAnton ReichenowAnton Reichenow was a German ornithologist.Reichenow was the son-in-law of Jean Cabanis, and worked at the Humboldt Museum from 1874 to 1921. He was an expert on African birds, making a collecting expedition to West Africa in 1872 and 1873, and writing Die Vögel Afrikas...
, 1894) - Damara Helmeted Guineafowl - southern AngolaAngolaAngola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city...
to BotswanaBotswanaBotswana, officially the Republic of Botswana , is a landlocked country located in Southern Africa. The citizens are referred to as "Batswana" . Formerly the British protectorate of Bechuanaland, Botswana adopted its new name after becoming independent within the Commonwealth on 30 September 1966...
and NamibiaNamibiaNamibia, officially the Republic of Namibia , is a country in southern Africa whose western border is the Atlantic Ocean. It shares land borders with Angola and Zambia to the north, Botswana to the east and South Africa to the south and east. It gained independence from South Africa on 21 March... - N. m. reichenowi (Ogilvie-GrantWilliam Robert Ogilvie-GrantWilliam Robert Ogilvie-Grant was a Scottish ornithologist.-Career:Ogilvie-Grant was educated at Cargilfield and Fettes College, Edinburgh, where he studied zoology and anatomy. In 1882 he became an Assistant at the Natural History Museum. He studied ichthyology under Albert C. L. G...
, 1894) - Reichenow's Helmeted Guineafowl - KenyaKenyaKenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...
and central TanzaniaTanzaniaThe United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state... - N. m. sabyi (HartertErnst HartertErnst Johann Otto Hartert was a German ornithologist. Hartert was born in Hamburg. He was employed by Lionel Walter Rothschild as ornithological curator of his private museum at Tring from 1892 to 1929....
, 1919) - Saby's Helmeted Guineafowl - northwestern MoroccoMoroccoMorocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara... - N. m. somaliensis (NeumannOscar Rudolph NeumannOscar Rudolph Neumann was a German ornithologist.Neumann travelled to Africa on several occasions, in particular between 1892 and 1894, and described many new African species...
, 1899) - Somali Tufted Guineafowl - northeastern EthiopiaEthiopiaEthiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...
and SomaliaSomaliaSomalia , officially the Somali Republic and formerly known as the Somali Democratic Republic under Socialist rule, is a country located in the Horn of Africa. Since the outbreak of the Somali Civil War in 1991 there has been no central government control over most of the country's territory...
External links
- Helmeted Guineafowl videos, photos & sounds on the Internet Bird Collection