Common Waxbill
Encyclopedia
The Common Waxbill also known as the St Helena Waxbill, is a small passerine
Passerine
A passerine is a bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds or, less accurately, as songbirds, the passerines form one of the most diverse terrestrial vertebrate orders: with over 5,000 identified species, it has roughly...

 bird belonging to the estrildid finch
Estrildid finch
The estrildid finches are small passerine birds of the Old World tropics and Australasia. They can be classified as the family Estrildidae , or as a sub-group within the family Passeridae, which also includes the true sparrows....

 family. It is native to sub-Saharan Africa
Sub-Saharan Africa
Sub-Saharan Africa as a geographical term refers to the area of the African continent which lies south of the Sahara. A political definition of Sub-Saharan Africa, instead, covers all African countries which are fully or partially located south of the Sahara...

 but has been introduced to many other regions of the world and now has an estimated global extent of occurrence of 10,000,000 km². It is popular and easy to keep in captivity.

Description

It is a small bird, 11 to 13 centimetres in length with a wingspan of 12 to 14 centimetres and a weight of 7 to 10 grams. It has a slender body with short rounded wings and a long graduated tail. The bright red bill of the adult is the colour of sealing wax
Sealing wax
Sealing wax is a wax material of a seal which, after melting, quickly hardens forming a bond that is difficult to separate without noticeable tampering. Wax is used to verify something such as a document is unopened, to verify the sender's identity, for example with a signet ring, and as decoration...

 giving the bird its name. The plumage is mostly grey-brown, finely barred with dark brown. There is a red stripe through the eye and a reddish stripe along the centre of the belly. The cheeks and throat are whitish and there is often a pinkish flush to the underparts. The rump is brown and the tail and vent are dark. Females are similar to the males but are paler with less red on the belly. Juveniles are duller with little or no red on the belly, fainter dark barring and a black bill.

Similar species include the Black-rumped
Black-rumped Waxbill
The Black-rumped Waxbill is a common species of estrildid finch found in Southern Africa. It has an estimated global extent of occurrence of 2,000,000 km²....

, Crimson-rumped
Crimson-rumped Waxbill
The Crimson-rumped Waxbill Estrilda rhodopyga also known as Rosy-rumped Waxbill is a common species of estrildid finch found in north-eastern Africa...

 and Black-lored Waxbill
Black-lored Waxbill
The Black-lored Waxbill Estrilda nigriloris is a species of estrildid finch found around the Lualaba River and Lake Upemba in the southern of The Democratic Republic of the Congo. It has an estimated global extent of occurrence of less than 2,600 km²....

s. The Black-rumped Waxbill is black rather than brown on the rump and has a pale vent (area underneath the tail). The Crimson-rumped Waxbill has a dark bill, red rump and some red on the wings and tail. The Black-lored Waxbill (found only in the Democratic Republic of Congo) has a black rather than red stripe through the eye.

The Common Waxbill has a variety of twittering and buzzing calls and a distinctive high-pitched flight-call. The simple song
Bird song
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology and birding, songs are distinguished by function from calls.-Definition:The distinction between songs and calls is based upon...

 is harsh and nasal and descends on the last note.

Native range

There are about 17 subspecies
Subspecies
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...

 distributed widely across much of 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...

 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...

. They are present in most parts of East
East Africa
East Africa or Eastern Africa is the easterly region of the African continent, variably defined by geography or geopolitics. In the UN scheme of geographic regions, 19 territories constitute Eastern Africa:...

, Central
Central Africa
Central Africa is a core region of the African continent which includes Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, and Rwanda....

 and Southern Africa
Southern Africa
Southern Africa is the southernmost region of the African continent, variably defined by geography or geopolitics. Within the region are numerous territories, including the Republic of South Africa ; nowadays, the simpler term South Africa is generally reserved for the country in English.-UN...

 except for regions of desert or dense forest. In West Africa
West Africa
West Africa or Western Africa is the westernmost region of the African continent. Geopolitically, the UN definition of Western Africa includes the following 16 countries and an area of approximately 5 million square km:-Flags of West Africa:...

 they are more local with the main population centred on Sierra Leone
Sierra Leone
Sierra Leone , officially the Republic of Sierra Leone, is a country in West Africa. It is bordered by Guinea to the north and east, Liberia to the southeast, and the Atlantic Ocean to the west and southwest. Sierra Leone covers a total area of and has an estimated population between 5.4 and 6.4...

, Liberia
Liberia
Liberia , officially the Republic of Liberia, is a country in West Africa. It is bordered by Sierra Leone on the west, Guinea on the north and Côte d'Ivoire on the east. Liberia's coastline is composed of mostly mangrove forests while the more sparsely populated inland consists of forests that open...

 and the Ivory Coast. Common Waxbills inhabit open country with long grass
Grass
Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...

 and rank vegetation. They are often found near water in marshes and among reed
Phragmites
Phragmites, the Common reed, is a large perennial grass found in wetlands throughout temperate and tropical regions of the world. Phragmites australis is sometimes regarded as the sole species of the genus Phragmites, though some botanists divide Phragmites australis into three or four species...

s. They can be tame and will enter gardens, parks and farmland.

Introduced range

Birds have often escaped from captivity or been deliberately released. Breeding populations have become established in many places where the climate is sufficiently warm and where there is a sufficient supply of grass seeds. They are now found on many islands around Africa: Saint Helena
Saint Helena
Saint Helena , named after St Helena of Constantinople, is an island of volcanic origin in the South Atlantic Ocean. It is part of the British overseas territory of Saint Helena, Ascension and Tristan da Cunha which also includes Ascension Island and the islands of Tristan da Cunha...

, Ascension Island
Ascension Island
Ascension Island is an isolated volcanic island in the equatorial waters of the South Atlantic Ocean, around from the coast of Africa and from the coast of South America, which is roughly midway between the horn of South America and Africa...

, the Cape Verde
Cape Verde
The Republic of Cape Verde is an island country, spanning an archipelago of 10 islands located in the central Atlantic Ocean, 570 kilometres off the coast of Western Africa...

 Islands, São Tomé and Príncipe
São Tomé and Príncipe
São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is a Portuguese-speaking island nation in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two islands: São Tomé and Príncipe, located about apart and about , respectively, off...

, Mauritius
Mauritius
Mauritius , officially the Republic of Mauritius is an island nation off the southeast coast of the African continent in the southwest Indian Ocean, about east of Madagascar...

, Réunion
Réunion
Réunion is a French island with a population of about 800,000 located in the Indian Ocean, east of Madagascar, about south west of Mauritius, the nearest island.Administratively, Réunion is one of the overseas departments of France...

, Rodrigues
Rodrigues (island)
Rodrigues , sometimes spelled Rodriguez but named after the Portuguese explorer Diogo Rodrigues, is the smallest of the Mascarene Islands and a dependency of Mauritius...

, the Seychelles
Seychelles
Seychelles , officially the Republic of Seychelles , is an island country spanning an archipelago of 115 islands in the Indian Ocean, some east of mainland Africa, northeast of the island of Madagascar....

 and Ile Amsterdam
Île Amsterdam
New Amsterdam, Amsterdam Island, or Île Amsterdam is a French island in the Indian Ocean located at . It is part of the French Southern and Antarctic Lands.- History :...

. They may possibly be native on some of these islands. In Europe the Common Waxbill has become widespread in Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 and is spreading through Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. There are small populations on Madeira
Madeira
Madeira is a Portuguese archipelago that lies between and , just under 400 km north of Tenerife, Canary Islands, in the north Atlantic Ocean and an outermost region of the European Union...

 and Gran Canaria
Gran Canaria
Gran Canaria is the second most populous island of the Canary Islands, with a population of 838,397 which constitutes approximately 40% of the population of the archipelago...

 and it has recently appeared on Tenerife
Tenerife
Tenerife is the largest and most populous island of the seven Canary Islands, it is also the most populated island of Spain, with a land area of 2,034.38 km² and 906,854 inhabitants, 43% of the total population of the Canary Islands. About five million tourists visit Tenerife each year, the...

 and the Azores
Azores
The Archipelago of the Azores is composed of nine volcanic islands situated in the middle of the North Atlantic Ocean, and is located about west from Lisbon and about east from the east coast of North America. The islands, and their economic exclusion zone, form the Autonomous Region of the...

. In the Americas
Americas
The Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...

 waxbills are found in Trinidad
Trinidad
Trinidad is the larger and more populous of the two major islands and numerous landforms which make up the island nation of Trinidad and Tobago. It is the southernmost island in the Caribbean and lies just off the northeastern coast of Venezuela. With an area of it is also the fifth largest in...

, several parts of 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...

 and there are a few on Bermuda
Bermuda
Bermuda is a British overseas territory in the North Atlantic Ocean. Located off the east coast of the United States, its nearest landmass is Cape Hatteras, North Carolina, about to the west-northwest. It is about south of Halifax, Nova Scotia, Canada, and northeast of Miami, Florida...

. In the Pacific there are populations on New Caledonia
New Caledonia
New Caledonia is a special collectivity of France located in the southwest Pacific Ocean, east of Australia and about from Metropolitan France. The archipelago, part of the Melanesia subregion, includes the main island of Grande Terre, the Loyalty Islands, the Belep archipelago, the Isle of...

, Efate
Éfaté
Efate is an island in the Agean Ocean which is part of the Shefa Province in The Republic of Maliki. It is also known as Île Vate. It is the most populous island in Vanuatu. Efate's land area of makes it Vanuatu's third largest island. Most inhabitants of Efate live in Port Vila, the national...

 Island in Vanuatu
Vanuatu
Vanuatu , officially the Republic of Vanuatu , is an island nation located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is some east of northern Australia, northeast of New Caledonia, west of Fiji, and southeast of the Solomon Islands, near New Guinea.Vanuatu was...

, Tahiti
Tahiti
Tahiti is the largest island in the Windward group of French Polynesia, located in the archipelago of the Society Islands in the southern Pacific Ocean. It is the economic, cultural and political centre of French Polynesia. The island was formed from volcanic activity and is high and mountainous...

 and the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...

.In Spain ,in the largest cities it has been introduced in last ten years , now it's quite common to
see it in Madrid , Barcelona, Valencia , and in Spanish-Portuguese boarders.

Reproduction

The nest
Nest
A nest is a place of refuge to hold an animal's eggs or provide a place to live or raise offspring. They are usually made of some organic material such as twigs, grass, and leaves; or may simply be a depression in the ground, or a hole in a tree, rock or building...

 is a large ball of criss-crossed grass stems with a long downward-pointing entrance tube on one side. It is built in a cavity, usually low down amongst dense vegetation. A rudimentary second nest ("cock's nest") may be built on top where the male sleeps. Four to seven white eggs
Egg (biology)
An egg is an organic vessel in which an embryo first begins to develop. In most birds, reptiles, insects, molluscs, fish, and monotremes, an egg is the zygote, resulting from fertilization of the ovum, which is expelled from the body and permitted to develop outside the body until the developing...

 are laid. They are incubated
Avian incubation
Incubation refers to the process by which certain oviparous animals hatch their eggs, and to the development of the embryo within the egg. The most vital factor of incubation is the constant temperature required for its development over a specific period. Especially in domestic fowl, the act of...

 for 11 to 13 days and the young birds fledge
Fledge
Fledge is the stage in a young bird's life when the feathers and wing muscles are sufficiently developed for flight. It also describes the act of a chick's parents raising it to a fully grown state...

 17 to 21 days after hatching. Both parents take part in incubating the eggs and feeding the chicks. The timing of the breeding season varies in different parts of the world. Nests may be parasitized
Brood parasite
Brood parasites are organisms that use the strategy of brood parasitism, a kind of kleptoparasitism found among birds, fish or insects, involving the manipulation and use of host individuals either of the same or different species to raise the young of the brood-parasite...

 by the Pin-tailed Whydah
Pin-tailed Whydah
The Pin-tailed Whydah, Vidua macroura, is a small songbird. It is a resident breeding bird in most of Africa south of the Sahara Desert.This whydah is found in many open habitats including open woodland, scrub and cultivation....

 which lays its eggs in the nests of estrildid finches. In captivity they will breed in an aviary
Aviary
An aviary is a large enclosure for confining birds. Unlike cages, aviaries allow birds a larger living space where they can fly; hence, aviaries are also sometimes known as flight cages...

 and can raise four brood
Offspring
In biology, offspring is the product of reproduction, of a new organism produced by one or more parents.Collective offspring may be known as a brood or progeny in a more general way...

s in a year.

Feeding

The diet consists mainly of grass seed
Seed
A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...

s but insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

s are also eaten on occasions, especially during the breeding season when more protein
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...

 is needed. The waxbills typically forage in flocks which may contain hundreds or even thousands of birds. They usually feed by clinging to the stems with their long, spindly claws and picking from the flower heads but they will also search for fallen seeds on the ground. They need to drink regularly as the seeds contain little water.

Further reading

  • Arnaiz-Villena A
    Antonio Arnaiz-Villena
    Antonio Arnaiz-Villena is a Spanish immunologist noted for his research into the genetic history of ethnic groups and fringe linguistic hypotheses. Arnaiz-Villena was president of Spain's National Society of Immunology from 1991 to 1995. He has written more than 300 papers in immunology and human...

    , Ruiz-del-Valle V, Gomez-Prieto P, Reguera , Parga-Lozano C, Serano-Vela JI (2009) Estrildinae Finches (Aves, Passeriformes) from Africa, South Asia and Australia: a Molecular Phylogeographic Study. The Open Ornithology Journal 2. ISSN: 1874-4532.
  • Heinrich L. Bregulla (1992) Birds of Vanuatu, Anthony Nelson, Oswestry, England
  • Tony Clarke, Chris Orgill & Tony Dudley (2006) Field Guide to the Birds of the Atlantic Islands, Christopher Helm, London
  • Peter Clement, Alan Harris & John Davies (1993) Finches and Sparrows: An Identification Guide, Christopher Helm, London
  • Ian Sinclair & Peter Ryan (2003) Birds of Africa south of the Sahara, Struik, Cape Town
  • Adrian Skerrett, Ian Bullock & Tony Disley (2001), Birds of Seychelles, Christopher Helm, London
  • D. W. Snow & C. M. Perrins (1998) Birds of the Western Palearctic: Concise Edition, Vol. 2, Oxford University Press
  • BirdLife Species Factsheet

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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