Spotless starling

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Spotless starling
Estornino Negro. Casa de Campo. Madrid (3).jpg
in winter plumage
Sturnus unicolor-male singing.jpg
breeding male
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Sturnidae
Genus: Sturnus
Species:
S. unicolor
Binomial name
Sturnus unicolor
Temminck, 1820
Unicolor.gif
mating display of raising feathers Spotless starling (Sturnus unicolor) display composite.jpg
mating display of raising feathers

The spotless starling (Sturnus unicolor) is a passerine bird in the starling family, Sturnidae. It is closely related to the common starling (S. vulgaris), but has a much more restricted range, confined to the Iberian Peninsula, Northwest Africa, southernmost France, and the islands of Sicily, Corsica and Sardinia. It is largely non-migratory. [2] [3] [4]

Contents

Taxonomy and systematics

Subsequent to the recent split of the genus Sturnus , this species and the common starling are the only species retained in the genus. [5] [6] Hybrids with the common starling are found occasionally where the breeding ranges overlap in northeastern Spain. [2] [3]

Description

Eggs of Sturnus unicolor - MHNT Sturnus unicolor MHNT.ZOO.2010.11.215.Andalousie.jpg
Eggs of Sturnus unicolor - MHNT

The adult spotless starling is very similar to the common starling, but marginally larger (21–23 cm length; 70–100 g weight), and has darker, oily-looking black plumage, slightly purple- or green-glossed in bright light, which is entirely spotless in spring and summer, and only with very small pale spots in winter plumage, formed by the pale tips of the feathers. It also differs in having conspicuously longer throat feathers (twice the length of those on common starlings [2] ), forming a shaggy "beard" which is particularly obvious when the bird is singing. Its legs are bright pink. In summer, the bill is yellow with a bluish base in males and a pinkish base in females; in winter, it is duller, often blackish. Young birds are dull brown, darker than young common starlings, and have a black bill and brown legs. [4] [7] Confusion with the common starling is particularly easy during the winter, when common starlings are abundant throughout the spotless starling's range, but also in summer where their breeding ranges overlap in northeastern Spain and the far south of France. [4] It can also be confused with the common blackbird (Turdus merula), which differs most obviously in its longer tail and lack of plumage gloss. [7]

Like the common starling, it walks rather than hops, and has a strong direct flight, looking triangular-winged and short-tailed. It is a noisy bird and a good mimic; its calls are similar to the common starling's, but louder. [4]

Distribution and habitat

The spotless starling uses a wide range of habitats and can be found in any reasonably open environment, from farmland and olive groves to human habitation. The highest population densities are in open grazed holm oak woods, and in urban habitats such as Gibraltar, where it is common. [3] [8] The population has grown in recent decades with a northward expansion in range, spreading to the whole of Spain (previously absent from the northeast) between 1950 and 1980, and colonising locally along the southern coast of mainland France since 1983. [3] [4] Like its more common relative, it is an omnivore, taking a wide variety of invertebrates, berries, and human-provided scraps. It is gregarious, forming sizeable flocks, often mixed with common starlings, of up to 100,000 in winter. [2]

Like most starlings, it is a cavity-nesting species, breeding in tree holes, buildings and in cliff crevices. It typically lays three to five eggs. [2]

Related Research Articles

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The fieldfare is a member of the thrush family Turdidae. It breeds in woodland and scrub in northern Europe and across the Palearctic. It is strongly migratory, with many northern birds moving south during the winter. It is a very rare breeder in Great Britain & Ireland, but winters in large numbers in the United Kingdom, Southern Europe, North Africa and the Middle East. It is omnivorous, eating a wide range of molluscs, insects and earthworms in the summer, and berries, grain and seeds in the winter.

Whinchat Species of bird

The whinchat is a small migratory passerine bird breeding in Europe and western Asia and wintering in central Africa. At one time considered to be in the thrush family, Turdidae, it is now placed in the Old World flycatcher family, Muscicapidae. Both sexes have a strong supercilium, brownish upper parts mottled darker, a pale throat and breast, a pale buff to whitish belly, and a blackish tail with white bases to the outer tail feathers, but in the breeding season, the male has an orange-buff throat and breast.

Starling Family of birds

Starlings are small to medium-sized passerine birds in the family Sturnidae. The name "Sturnidae" comes from the Latin word for starling, sturnus. Many Asian species, particularly the larger ones, are called mynas, and many African species are known as glossy starlings because of their iridescent plumage. Starlings are native to Europe, Asia and Africa, as well as northern Australia and the islands of the tropical Pacific. Several European and Asian species have been introduced to these areas as well as North America, Hawaii and New Zealand, where they generally compete for habitats with native birds and are considered to be invasive species. The starling species familiar to most people in Europe and North America is the common starling, and throughout much of Asia and the Pacific, the common myna is indeed common.

Common starling Sturnus vulgaris; medium sized passerine bird native to temperate Europe and western Asia

The common starling or European starling, also known simply as the starling in Great Britain and Ireland, is a medium-sized passerine bird in the starling family, Sturnidae. It is about 20 cm (8 in) long and has glossy black plumage with a metallic sheen, which is speckled with white at some times of year. The legs are pink and the bill is black in winter and yellow in summer; young birds have browner plumage than the adults. It is a noisy bird, especially in communal roosts and other gregarious situations, with an unmusical but varied song. Its gift for mimicry has been noted in literature including the Mabinogion and the works of Pliny the Elder and William Shakespeare.

Rosy starling Species of bird

The rosy starling is a passerine bird in the starling family, Sturnidae, also known as the rose-coloured starling or rose-coloured pastor. The species was recently placed in its own monotypic genus, Pastor, and split from Sturnus. This split is supported by recent studies, though other related species within its new genus are not yet known for certain.

Garganey Species of bird

The garganey is a small dabbling duck. It breeds in much of Europe and across the Palearctic, but is strictly migratory, with the entire population moving to southern Africa, India, Bangladesh and Australasia during the winter of the Northern hemisphere, where large flocks can occur. This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. Like other small ducks such as the Eurasian teal, this species rises easily from the water with a fast twisting wader-like flight.

Common greenshank Species of bird

The common greenshank is a wader in the large family Scolopacidae, the typical waders. The genus name Tringa is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific nebularia is from Latin nebula "mist". Like the Norwegian Skoddefoll, this refers to the greenshank's damp marshy habitat.

Common sandpiper Species of bird

The common sandpiper is a small Palearctic wader. This bird and its American sister species, the spotted sandpiper, make up the genus Actitis. They are parapatric and replace each other geographically; stray birds of either species may settle down with breeders of the other and hybridize. Hybridization has also been reported between the common sandpiper and the green sandpiper, a basal species of the closely related shank genus Tringa.

Wood sandpiper Species of bird

The wood sandpiper is a small wader. This Eurasian species is the smallest of the shanks, which are mid-sized long-legged waders of the family Scolopacidae. The genus name Tringa is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific glareola is from Latin glarea, " gravel".

Spotted flycatcher Species of bird

The spotted flycatcher is a small passerine bird in the Old World flycatcher family. It breeds in most of Europe and in the Palearctic to Siberia, and is migratory, wintering in Africa and south western Asia. It is declining in parts of its range.

Squacco heron Species of bird

The squacco heron is a small heron, 44–47 cm long, of which the body is 20–23 cm (8–9 in), with 80–92 cm wingspan. It is of Old World origins, breeding in southern Europe and the Greater Middle East.

Little bittern Species of bird

The little bittern or common little bittern is a wading bird in the heron family, Ardeidae. Ixobrychus is from Ancient Greek ixias, a reed-like plant and brukhomai, to bellow, and minutus is Latin for "small".

Water pipit Species of passerine bird

The water pipit is a small passerine bird which breeds in the mountains of Southern Europe and the Palearctic eastwards to China. It is a short-distance migrant; many birds move to lower altitudes or wet open lowlands in winter.

Red-necked nightjar Species of bird

The red-necked nightjar is the largest of the nightjars occurring in Europe. It breeds in Iberia and North Africa, and winters in tropical West Africa.

Jungle myna Species of bird

The jungle myna is a myna, a member of the starling family. It is found patchily distributed across much of the mainland of the Indian Subcontinent but absent in the arid zones of India. It is easily recognized by the tuft of feathers on its forehead that form a frontal crest, a feature also found in the closely related Javan myna and the pale-bellied myna which were treated as a subspecies in the past. The eyes are pale, yellow or blue depending on the population and the base of the orange-yellow bill is dark. It has also been introduced either intentionally or accidentally into many other parts of the world including Fiji, Taiwan, the Andaman Islands, and parts of Japan. The species has also spread out on its own to some islands in the Pacific.

Brahminy starling Species of bird

The brahminy myna or brahminy starling is a member of the starling family of birds. It is usually seen in pairs or small flocks in open habitats on the plains of the Indian subcontinent.

Chestnut-tailed starling Species of bird

The chestnut-tailed starling, also called grey-headed starling and grey-headed myna is a member of the starling family. It is a resident or partially migratory species found in wooded habitats in India and Southeast Asia. The species name is after the distribution of a former subspecies in the Malabar region. While the chestnut-tailed starling is a winter visitor to peninsular India, the closely related resident breeding population with a white head is now treated as a full species, the Malabar starling.

<i>Acridotheres</i> Genus of birds

Acridotheres is a genus of starlings, the "typical" mynas, which are tropical members of the family Sturnidae.

<i>Sturnus</i> Genus of birds

Sturnus is a genus of starlings. As discussed below, the taxonomy of this group is complex, and other authorities differ considerably in which species they place in this genus, and in the species boundaries within Sturnus. The genus name Sturnus is Latin for "starling".

Black-collared starling Species of bird

The black-collared starling is a species of starling in the family Sturnidae. Its plumage is black and white, with a black collar. It is found in southern China and most of mainland Southeast Asia, and has been introduced to Taiwan, Malaysia and Singapore. Its habitats include grassland, dry forest and human settlements. The International Union for Conservation of Nature (IUCN) has assessed it as being of least concern.

References

  1. BirdLife International (2016). "Sturnus unicolor". IUCN Red List of Threatened Species . 2016: e.T22710893A87851643. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22710893A87851643.en . Retrieved 19 November 2021.
  2. 1 2 3 4 5 Hoyo, J. del; et al., eds. (2009). Handbook of the Birds of the World, vol. 14. Barcelona: Lynx Edicions. p. 725. ISBN   978-84-96553-50-7.
  3. 1 2 3 4 Hagemeijer, W. J. M., & Blair, M. J., eds. (1997). The EBCC Atlas of European Breeding Birds pp. 690. Poyser, London ISBN   0-85661-091-7.
  4. 1 2 3 4 5 Snow, D. W.; Perrins, C. M. (1998). The Birds of the Western Palearctic (Concise ed.). Oxford: Oxford University Press. pp. 1496–1498. ISBN   0-19-854099-X.
  5. Zuccon, D., Pasquet, E., & Ericson, P. G. P. (2008). Phylogenetic relationships among Palearctic–Oriental starlings and mynas (genera Sturnus and Acridotheres: Sturnidae). Zoologica Scripta 37: 469–481. Full text
  6. IOC World Bird List: Sturnidae
  7. 1 2 Blasco-Zumeta, J., & Heinze, G.-M. (undated). Laboratorio Virtual Ibercaja 417 Spotless Starling
  8. The Gibraltar Bird List