African silverbill | |
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In Kenya | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Estrildidae |
Genus: | Euodice |
Species: | E. cantans |
Binomial name | |
Euodice cantans (Gmelin, JF, 1789) | |
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The Distribution of the African silverbill | |
Synonyms | |
Lonchura cantans |
The African silverbill (Euodice cantans) is a small passerine bird formerly considered conspecific with the Asian species Indian silverbill, (Euodice malabarica). This estrildid finch is a common resident breeding bird in dry savanna habitat, south of the Sahara Desert. This species has also been introduced to other countries such as Portugal, Qatar and United States.
The African silverbill was formally described in 1789 by the German naturalist Johann Friedrich Gmelin under the binomial name Loxia cantans. [2] The specific epithet is from Latin and means "singing". [3] Gmemlin specified the locality as Africa but this was restricted to Dakar in Senegal by William Lutley Sclater and Cyril Mackworth-Praed in 1918. [4] [5] It is now placed with the Indian silverbill in the genus Euodice that was introduced in 1862 by the German naturalist Ludwig Reichenbach. [6] [7]
In early literature, the African silverbill and the Indian silverbill (E. malabarica) were treated as conspecific. In 1943, Jean Théodore Delacour united both species in his revision of the Estrildinae. [8] However, in 1964, Colin Harrison studied the two in a strictly comparative manner and concluded that they were two separate species. He discovered that although the call notes were similar, the songs are distinctly different in form, but sharing a common pattern. They are sympatric in the south of the Arabian Peninsula and there is no record of natural hybridization. From Harrison's personal observation of birds in captivity, each of the two forms evinced a preference for its own kind. [9] A molecular phylogenetic study of the Estrildidae published in 2020 found that the African and Indian silverbills were sister species that had diverged around one million years ago. The two species formed a clade that was basal to members of the genus Lonchura . [10]
Two subspecies are recognised: [7]
The African silverbill is approximately 10 cm (3.9 in) in length with a long black pointed tail. The adult has a stubby silver-blue bill, finely vermiculated light-brown upper parts, whitish underparts, black rump and black wings. The sexes are similar, but immatures lack the vermiculations. This species has a tseep call and a trilling song. The contact call of the male is a single tseep while the female is a double noted tsiptsip. Birds in flight keep up a constant tseep tseep tseep.
The subspecies E. c. orientalis is darker on the face and upperparts than the other subspecies.
The species is widespread in savanna country, arid landscape with thorn bush, and grasslands with acacias or dry grassland. It may also be found in cultivated areas and dry grassland. It is by nature a bird of dry country. It is primarily a lowland species but can be found up to 2,000 m (6,600 ft) altitude.
The African silverbill is tame and sociable, often found perching in trees in dense flocks, touching one another. However, it is a particularly inactive bird, sitting huddled together for a long period of time. It stays in flocks all year round and usually breeds in loose colony.
The African silverbill feeds mostly on grass seeds, picked from the ground but also taken from the growing plants if available. It will cling to grass stems to take seeds from the inflorescences. It seems that it feeds mainly on vegetable matter and rearing its young on seed as well. However, it has been recorded to take aphids from water mint (Meinertzhagen 1954).
The male displays by grasping a stem of grass at one end, and hops or files to near the female. At once he sleeks down his feathers, stands upright with tail straight down, and jerks his head upwards a few times. He then leans forward, twists his tail towards the female and fluffs his flank and belly feathers. At this stage he usually drops the straw and begins to sing and dance. The flank and ventral feathers are not always fluffed out, and the intensity of the display probably depends on the relationship of the two birds. If the female seems receptive the male will attempt copulation. However, most displays come to an end before this final phase is reached. Successful mating is usually followed by a little bill fencing and mutual preening (Baptista and Horblit 1990).
The nest of the African silverbill is usually built in the form of a roundish bundle of grasses. It is lined with soft fibres and sometimes feathers, and may be placed in a thick bush or hedge or amongst the creepers on a house. The male is recorded in the wild as collecting all the nesting material (Meinertzhagen 1954), while the female only shares in construction.
The clutch varies from three to six oval, smooth white eggs. The female incubates during the day, and though the male may relieve her when she leaves the nest to feed. It has been suggested that the male does not actually brood (Soderberg 1956). They are both at nest at night. The incubation period is about eleven to thirteen days average, and the young fledging in about twenty-one days and becoming independent within a month of fledging.
Newly hatched young are dark and have waxy-looking yellow gape swellings. The plate has a single heavy black circle inside the white mouth flange, which embraces the upper and lower parts of the gape.
The African silverbill is currently trapped for the cage bird trade. However, its numbers and its considerable range mean that this is unlikely to have any impact on the species' survival.
The African paradise flycatcher is a medium-sized passerine bird. The two central tail feathers of the male are extended into streamers that commonly are more than twice as long as the body. The female tail feathers are of moderate length and without streamers. The upper parts of the male body, wings, and tail are boldly coloured in chestnut or rusty shades, but the underparts and the head are variably grey to blue-gray, with the head of the mature male being darker, commonly glossy black with greenish highlights. The beak and other bare areas, including a wattle ring round the eye, match the colour of the surrounding feathers. The female coloration is similar, though not so showy and glossy and with the head paler.
The Indian silverbill or white-throated munia is a small passerine bird found in the Indian Subcontinent and adjoining regions that was formerly considered to include the closely related African silverbill. This estrildid finch is a common resident breeding bird in the drier regions of the Middle East and the Indian Subcontinent. It has also been introduced into many other parts of the world and has become established in some areas. They forage in small flocks in grassland and scrub habitats.
Lonchura is a genus of the estrildid finch family, and includes munias and mannikins. They are seed-eating birds that are found in South Asia from India, Bangladesh, Sri Lanka east to Indonesia, Papua New Guinea, and the Philippines. The name mannikin is from Middle Dutch mannekijn 'little man', and also the source of the common name of the family Pipridae, manakin.
The double-barred finch is an estrildid finch found in dry savannah, tropical (lowland) dry grassland and shrubland habitats in northern and eastern Australia. It is sometimes referred to as Bicheno's finch or as the owl finch, the latter of which owing to the dark ring of feathers around the face. It is the only species placed in the genus Stizoptera .
The Gouldian finch, also known as the Gould's finch or the rainbow finch, is a colourful passerine bird that is native to Australia.
The red avadavat, red munia or strawberry finch, is a sparrow-sized bird of the family Estrildidae. It is found in the open fields and grasslands of tropical Asia and is popular as a cage bird due to the colourful plumage of the males in their breeding season. It breeds in the Indian Subcontinent in the monsoon season. The species name of amandava and the common name of avadavat are derived from the city of Ahmedabad in Gujarat, India, from where these birds were exported into the pet trade in former times.
The common waxbill, also known as the St Helena waxbill, is a small passerine bird belonging to the estrildid finch family. It is native to sub-Saharan Africa 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.
The black-faced waxbill is a common species of estrildid finch found in southern Africa. It is found in Angola, Botswana, Kenya, Namibia, Rwanda, South Africa, Tanzania, Uganda, Zambia and Zimbabwe. The IUCN has classified the species as being of least concern.
The plum-headed finch also known as cherry finch is a common species of estrildid finch found in Australia. It is the only species placed in the genus Aidemosyne. It has an estimated global extent of occurrence of 100,000 – 1,000,000 km2.
The grey-headed silverbill, also known as pearl-headed mannikin, is a species of estrildid finch found in eastern Africa, Ethiopia, Kenya, South Sudan, and Tanzania. It has an estimated global extent of occurrence of 400,000 km2. It was formerly usually placed in the monotypic genus Odontospiza as Odontospiza caniceps and sometimes placed in the genus Lonchura.
The dusky munia is a species of estrildid finch which is endemic to Borneo. It is also commonly referred to as the Dusky mannikin and the Bornean munia. It is in the family of perching birds (Passeriformes) and is in the genus Lonchura. It is a monotypic species, and there are no subspecies in the genus.
The firefinches form a genus, Lagonosticta, of small seed-eating African birds in the family Estrildidae.
Pytilia is a genus of small brightly coloured seed-eating birds in the family Estrildidae. They are distributed across Africa.
Parrotfinches are small, colourful passerine birds belonging to the genus Erythrura in the family Estrildidae, the estrildid finches. They occur from South-east Asia to New Guinea, and many Pacific Islands. They inhabit forest, bamboo thickets and grassland and some can be found in man-made habitats such as farmland, parks and gardens. Several species are commonly kept as cagebirds.
Hypargos is a genus of small seed-eating birds in the family Estrildidae that are found in Sub-Saharan Africa.
Euodice is a genus of small seed-eating birds in the family Estrildidae. These species are from the dry zones of Africa and India and are commonly referred to as silverbills. They were formerly included in the genus Lonchura.
Amandava is a genus of the estrildid finches. These birds are found in dense grass or scrub in Africa and South Asia. They are gregarious seed-eaters with short, red bills. In earlier literature, amadavat and amidavad have been used. The name amandava, along with amadavat and amidavad are all corruptions of Ahmedabad, a city in Gujarat, India from where the first few specimens of the red munia Amandava amandava were obtained.
Coccopygia, is a genus of small seed-eating birds in the family Estrildidae. They are distributed across central and southern Africa.
Brunhilda is a genus of small seed-eating birds in the waxbill family Estrildidae. The species are found in Sub-Saharan Africa.
Granatina is a genus of small seed-eating birds in the family Estrildidae that are found in Africa.