Golden-winged grosbeak

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Golden-winged grosbeaks
Rhynchostruthus socotranus 2.jpg
Socotra grosbeak, Rhynchostruthus socotranus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Fringillidae
Subfamily: Carduelinae
Genus: Rhynchostruthus
P.L. Sclater & Hartlaub, 1881
Type species
Rhynchostruthus socotranus [1]
P.L. Sclater & Hartlaub, 1881
Species

Rhynchostruthus louisae
Rhynchostruthus percivali
Rhynchostruthus socotranus

Contents

The genus Rhynchostruthus is a small group of finches in the family Fringillinae. Commonly known as golden-winged grosbeaks, they are attractive, chunky, medium-sized, robust-billed songbirds restricted to the southern Arabian and northern Somalian regions.

These elusive birds are typically found between 1,060 and 2,800 metres ASL in forested wadis and areas of scrub. The fruits of junipers, acacias and spurges appear to form the bulk of their diet.

Description

These birds have slight sexual dichromatism. Males are grey-brown overall with a black bill, dark mask, white cheeks, and large, bright yellow patches on the wings and tail. The extent of the dark head-pattern and white cheek-patches varies considerably between taxa. The females are similar to the males though somewhat duller, and the juveniles are rather streaky and lack the adults' distinctive head pattern.

Systematics

The large bill suggests a relationship with the Asian grosbeaks - e.g. Mycerobas - but its song and calls are reminiscent of European goldfinch Carduelis carduelis, European greenfinch C. chloris, and Yemen linnet C. yemenensis. Also it has been observed performing a greenfinch-like slow-winged display flight which suggests its true affinities may lie within the genus Carduelis . Altogether, Rhynchostruthus seems to belong to a group of Carduelinae which includes such birds as Carduelis , the oriole finch (Linurgus olivaceus), and the canaries, many of which have large amounts of brilliant yellow plumage. But the exact placement of the golden-winged grosbeaks is not very well resolved. Molecular genetic studies have shown that Rhynchostruthus and Rhodospiza form a distinct clade but are not closely related to any other of the birds commonly referred to as "grosbeaks". [2]

The genus used to contain a single species, Rhynchostruthus socotranus. But more recently this is often split into three: [3] [4]

Related Research Articles

<span class="mw-page-title-main">Finch</span> Family of birds

The true finches are small to medium-sized passerine birds in the family Fringillidae. Finches generally have stout conical bills adapted for eating seeds and nuts and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide native distribution except for Australia and the polar regions. The family Fringillidae contains more than two hundred species divided into fifty genera. It includes the canaries, siskins, redpolls, serins, grosbeaks and euphonias, as well as the morphologically divergent Hawaiian honeycreepers.

<i>Serinus</i> Genus of birds

Serinus is a genus of small birds in the finch family Fringillidae found in West Asia, Europe and Africa. The birds usually have some yellow in their plumage. The genus was introduced in 1816 by the German naturalist Carl Ludwig Koch. Its name is Neo-Latin for "canary-yellow".

<span class="mw-page-title-main">European greenfinch</span> Species of bird

The European greenfinch or simply the greenfinch is a small passerine bird in the finch family Fringillidae.

<span class="mw-page-title-main">Redpoll</span> Genus of birds

The redpolls are a group of small passerine birds in the finch family Fringillidae, which have characteristic red markings on their heads. They are placed in the genus Acanthis. The genus name Acanthis is from the Ancient Greek akanthis, a name for a small now-unidentifiable bird.

<span class="mw-page-title-main">Grosbeak</span> Form taxon of passerine birds

Grosbeak is a form taxon containing various species of seed-eating passerine birds with large beaks. Although they all belong to the superfamily Passeroidea, these birds are not part of a natural group but rather a polyphyletic assemblage of distantly related songbirds. Some are cardueline finches in the family Fringillidae, while others are cardinals in the family Cardinalidae; one is a member of the weaver family Ploceidae. The word "grosbeak", first applied in the late 1670s, is a partial translation of the French grosbec, where gros means "large" and bec means "beak".

<span class="mw-page-title-main">Desert finch</span> Species of bird

The desert finch, sometimes called Lichtenstein's desert finch, is a large brown true finch found in southern Eurasia. Its taxonomy is confused, and it has formerly been placed in Fringilla, Bucanetes, Carduelis and Rhodopechys.

<span class="mw-page-title-main">Grey-capped greenfinch</span> Species of bird

The grey-capped greenfinch or Oriental greenfinch is a small passerine bird in the finch family Fringillidae that breeds in broadleaf and conifer woodlands of the East Palearctic.

<i>Pyrrhula</i> Genus of birds

Pyrrhula is a small genus of passerine birds, commonly called bullfinches, belonging to the finch family (Fringillidae). The genus has a Palearctic distribution; almost all species occur in Asia, with two species exclusively in the Himalayas and one species, P. pyrrhula, also occurring in Europe. The Azores bullfinch is a critically endangered species, occurring only in the east of the island of São Miguel in the Azores archipelago.

<span class="mw-page-title-main">Oriole finch</span> Species of bird

The oriole finch is a small passerine bird in the finch family. It is found in Africa and is native to Burundi, Cameroon, Democratic Republic of the Congo, Equatorial Guinea, Kenya, Malawi, Nigeria, Rwanda, South Sudan, Tanzania and Uganda. It lives in subtropical or tropical moist evergreen montane forests.

<span class="mw-page-title-main">Carduelinae</span> Subfamily of birds

The cardueline finches are a subfamily, Carduelinae, one of three subfamilies of the finch family Fringillidae, the others being the Fringillinae and the Euphoniinae. The Hawaiian honeycreepers are now included in this subfamily. Except for the Hawaiian honeycreepers which underwent adaptive radiation in Hawaii and have evolved a broad range of diets, cardueline finches are specialised seed eaters, and unlike most passerine birds, they feed their young mostly on seeds, which are regurgitated. Besides this, they differ from the other finches in some minor details of their skull. They are adept at opening seeds and clinging to stems, unlike other granivorous birds, such as sparrows and buntings, which feed mostly on fallen seeds. Some members of this subfamily are further specialised to feed on a particular type of seed, such as cones in the case of crossbills. Carduelines forage in flocks throughout the year, rather than keeping territories, and males defend their females rather than a territory or nest.

<span class="mw-page-title-main">Cape siskin</span> Species of bird

The Cape siskin is a small passerine bird in the finch family. It is an endemic resident breeder in the southern Cape Province of South Africa.

<span class="mw-page-title-main">Black-headed greenfinch</span> Species of bird

The black-headed greenfinch is a small passerine bird in the family Fringillidae. It is found in the Chinese province of Yunnan, northern Laos, eastern Myanmar and adjacent areas of Vietnam, Thailand and Northeast India. Its natural habitats are subtropical or tropical dry forest and subtropical or tropical dry shrubland.

<span class="mw-page-title-main">Vietnamese greenfinch</span> Species of bird

The Vietnamese greenfinch is a small passerine bird in the family Fringillidae. It is found only in Đà Lạt Plateau of southern Vietnam. Its natural habitat is open montane pine forest and scrubland. It is threatened by habitat loss.

<span class="mw-page-title-main">Yellow-breasted greenfinch</span> Species of bird

The yellow-breasted greenfinch is a small passerine bird in the family Fringillidae that is native to the northern regions of the Indian subcontinent.

<span class="mw-page-title-main">Indonesian serin</span> Species of bird

The Indonesian serin is a species of finch in the family Fringillidae.

<span class="mw-page-title-main">Somali golden-winged grosbeak</span> Species of bird

The Somali golden-winged grosbeak or Somali grosbeak is a finch endemic to Somaliland. It is included as a subspecies in R. socotranus by some authorities, but in recent times the three golden-winged grosbeak populations are usually considered distinct species.

<span class="mw-page-title-main">Arabian golden-winged grosbeak</span> Species of bird

The Arabian golden-winged grosbeak or Arabian grosbeak is a finch found in Saudi Arabia, Oman and Yemen. It is included as a subspecies in R. socotranus by some authorities, but in recent times the three golden-winged grosbeak populations are usually considered distinct species.

<span class="mw-page-title-main">Socotra golden-winged grosbeak</span> Species of bird

The Socotra golden-winged grosbeak or Socotra grosbeak is a finch endemic to Socotra, an island in the Indian Ocean off the coast of Yemen. R. socotranus is by some authorities held to be the only species of the then-monotypic genus Rhynchostruthus, including all other golden-winged grosbeaks therein as subspecies. But in recent times the three populations are usually considered a distinct species, with R. socotranus being limited to the Socotra population, the Arabian golden-winged grosbeak becoming R. percivali, and the Somali golden-winged grosbeak R. louisae.

<span class="mw-page-title-main">Greenfinch</span> Genus of birds

The greenfinches are small passerine birds in the genus Chloris in the subfamily Carduelinae within the Fringillidae. The species have a Eurasian distribution except for the European greenfinch, which also occurs in North Africa.

<span class="mw-page-title-main">Slender-billed greenfinch</span> Extinct species of bird

The slender-billed greenfinch("Carduelis" aurelioi) is an extinct songbird in the finch family Fringillidae. It was endemic to the island Tenerife in the Canary Islands, and became extinct after human settlement of the islands.

References

  1. "Fringillidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-16.
  2. Zuccon, Dario; Prŷs-Jones, Robert; Rasmussen, Pamela C.; Ericson, Per G.P. (2012). "The phylogenetic relationships and generic limits of finches (Fringillidae)" (PDF). Molecular Phylogenetics and Evolution. 62 (2): 581–596. doi:10.1016/j.ympev.2011.10.002. PMID   22023825.
  3. Kirwan, G.M.; Grieve, A. (2007). "Studies of Socotran birds II. One, two or three species: towards a rational taxonomy for the Golden-winged Grosbeak Rhynchostruthus socotranus". Bulletin of the African Bird Club. 14 (2): 159–169.
  4. Gill, Frank; Donsker, David (eds.). "Finches, euphonias". World Bird List Version 5.2. International Ornithologists' Union. Retrieved 5 June 2015.