Coracias

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Coracias
European roller.jpg
Adult European roller
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Coraciiformes
Family: Coraciidae
Genus: Coracias
Linnaeus, 1758
Type species
Coracias garrulus (European roller)
Linnaeus, 1758
Species

9, see text

Synonyms
  • GalgulusBrisson, 1760

Coracias is a genus of the rollers, an Old World family of near passerine birds related to the kingfishers and bee-eaters. They share the colourful appearance of those groups, blues and browns predominating. The two outer front toes are connected, but not the inner one.

Contents

Taxonomy

The genus Coracias was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae . [1] The genus name is from Ancient Greek korakías (κορακίας), [2] derived from korax ( κόραξ , ‘raven, crow’). [3] Aristotle described the coracias as a bird as big as a crow with a red beak, [4] which some believe to be the chough. [5] The type species was designated as the European roller (Coracias garrulus) by George Robert Gray in 1855. [6] [7]

The phylogenetic relationships among the Coracias species are shown below, from the the molecular study by Johansson et al. (2018) [8]

Coracias

Blue-bellied rollerC. cyanogaster

Purple rollerC. naevius

Racket-tailed rollerC. spatulatus

Indian rollerC. benghalensis

Indochinese rollerC. affinis

Purple-winged rollerC. temminckii

Lilac-breasted rollerC. caudatus

Abyssinian rollerC. abyssinicus

European rollerC. garrulus

Species

Nine species are recognized: [9]

ImageCommon NameScientific nameDistribution
Coracias naevia -20090426B.jpg Purple roller Coracias naeviussub-Saharan Africa
Indian roller (Coracias benghalensis) Photograph by Shantanu Kuveskar.jpg Indian roller Coracias benghalensis Western Asia to Indian Subcontinent
Coracias affinis - Kaeng Krachan.jpg Indochinese roller Coracias affiniseastern India to southeast Asia
Purple-winged Roller Coracias temminckii - Flickr - Lip Kee.jpg Purple-winged roller Coracias temminckiiIslands of Sulawesi, Bangka, Lembeh, Manterawu, Muna and Butung.
Coracias spatulata 1zz.jpg Racket-tailed roller Coracias spatulatussouthern Africa from Angola, south-eastern Democratic Republic of Congo and southern Tanzania to northern Botswana, Zimbabwe, Malawi and Mozambique
Lilac breated Roller.JPG Lilac-breasted roller Coracias caudatussub-Saharan Africa and the southern Arabian Peninsula
Coracias abyssinica - Carlos Vermeersch Santana.JPG Abyssinian roller Coracias abyssinicustropical Africa in a belt south of the Sahara, known as the Sahel
European Roller (Coracias garrulus) (16475688389).jpg European roller Coracias garrulusMiddle East, Central Asia, Mediterranean and eastern Europe.
Blue-bellied Roller RWD5.jpg Blue-bellied roller Coracias cyanogasterSenegal to northeast Democratic Republic of the Congo

Former species

Formerly, some authorities also considered the following species (or subspecies) as species within the genus Coracias:

Behaviour and ecology

Coracias rollers are watch-and wait hunters. They sit in a tree or on a post before descending on their prey and carrying it back in the beak to a perch before dismembering it. A wide range of terrestrial invertebrates, and small vertebrates such as frogs, lizards rodents and young birds, are taken. Their prey includes items avoided by many other birds, such as hairy caterpillars, insects with warning colouration and snakes. [17] They often perch prominently whilst hunting, like giant shrikes.

Related Research Articles

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

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<span class="mw-page-title-main">Oriental dollarbird</span> Species of bird

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

The lilac-breasted roller is an African bird of the roller family, Coraciidae. It is widely distributed in Southern and Eastern Africa, and is a vagrant to the southern Arabian Peninsula. It prefers open woodland and savanna, and it is for the most part absent from treeless places. Usually found alone or in pairs, it perches at the tops of trees, poles or other high vantage points from where it can spot insects, amphibians and small birds moving about on the ground. Nesting takes place in a natural hole in a tree where a clutch of 2–4 eggs are laid, and incubated by both parents, who are extremely aggressive in defence of their nest, taking on raptors and other birds. During the breeding season the male will rise to a fair height, descending in swoops and dives, while uttering harsh, discordant cries. The sexes do not differ in coloration, and juveniles lack the long tail streamers of adults. This species is unofficially considered the national bird of Kenya. Alternative names for the lilac-breasted roller include the fork-tailed roller, lilac-throated roller and Mosilikatze's roller.

<i>Ramphastos</i> Genus of birds

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<span class="mw-page-title-main">Racket-tailed roller</span> Species of bird

The racket-tailed roller is a species of bird in the family Coraciidae. It is found in southern Africa from Angola, south-eastern Democratic Republic of Congo and southern Tanzania to northern Botswana, Zimbabwe, Malawi and Mozambique.

<span class="mw-page-title-main">Purple-winged roller</span> Species of bird

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

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References

  1. Linnaeus, Carl (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (10th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 107.
  2. André Jean François Marie Brochant de Villers; Alexandre Brongniart; Pierre Jean François Turpin (1818). Dictionnaire des sciences naturelles (in French). Levrault. p. 349.
  3. Craig, J. (1854). A New Universal, Technological, Etymological, and Pronouncing Dictionary of the English Language. p. 407.
  4. Camus, A.-G. (1783). Histoire des animaux d'Aristote (in French). Chez la veuve Desaint. p. 225.
  5. Greek Word Study Tool
  6. Gray, George Robert (1855). Catalogue of the Genera and Subgenera of Birds Contained in the British Museum. London: British Museum. p. 13.
  7. Peters, James Lee, ed. (1945). Check-List of Birds of the World. Vol. 5. Cambridge, Massachusetts: Harvard University Press. p. 241.
  8. Johansson, U. S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. (2018). "Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes". Molecular Phylogenetics and Evolution. 126: 17–22. doi:10.1016/j.ympev.2018.03.030. PMID   29631051. S2CID   5011292.
  9. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2021). "Rollers, ground rollers, kingfishers". IOC World Bird List Version 11.2. International Ornithologists' Union. Retrieved 10 August 2021.
  10. "Oriolus sagittatus - Avibase". avibase.bsc-eoc.org. Retrieved 2017-02-24.
  11. "Oriolus oriolus - Avibase". avibase.bsc-eoc.org. Retrieved 2017-02-25.
  12. "Oriolus xanthornus - Avibase". avibase.bsc-eoc.org. Retrieved 2017-03-01.
  13. "Eurystomus glaucurus - Avibase". avibase.bsc-eoc.org. Retrieved 2017-03-06.
  14. "Eurystomus glaucurus afer - Avibase". avibase.bsc-eoc.org. Retrieved 2017-03-06.
  15. "Eurystomus orientalis - Avibase". avibase.bsc-eoc.org. Retrieved 2017-03-06.
  16. "Eurystomus orientalis pacificus - Avibase". avibase.bsc-eoc.org. Retrieved 2017-03-06.
  17. Fry, C. H.; Fry, K. (30 June 2010). Kingfishers, Bee-eaters and Rollers. Bloomsbury Publishing. pp. 15–16. ISBN   978-1408134573. OCLC   25547477.