Asian emerald cuckoo

Asian emerald cuckoo
	Male (♂) from Rama IX Park in Bangkok, Thailand
	Female (♀) from Mahananda WLS in West Bengal, India
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Cuculiformes
Family:	Cuculidae
Genus:	Chrysococcyx
Species:	C. maculatus
Binomial name
	Chrysococcyx maculatus; (Gmelin, JF, 1788)

Last updated December 22, 2023

The Asian emerald cuckoo (Chrysococcyx maculatus) is a species of cuckoo in the family Cuculidae. It is found in Bangladesh, Bhutan, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forest.

Taxonomy

The Asian emerald cuckoo was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae . He placed it with all the other cuckoos in the genus Cuculus and coined the binomial name Cuculus maculatus.^[2] Gmelin based his description on the "Spotted Curucui" from Ceylon that had been described and illustrated in 1776 by the English naturalist Peter Brown.^[3] The Asian emerald cuckoo is now placed together with 12 other species in the genus Chrysococcyx that was introduced in 1826 by the German zoologist Friedrich Boie.^[4]^[5] The genus name combines the Ancient Greek χρυσος khrusos meaning "gold" with κοκκυξ kokkux "cuckoo". The specific epithet maculatus is from Latin and means "spotted" or "blotched".^[6] The species is monotypic: no subspecies are recognised.^[5]

Description

The Asian emerald cuckoo grows to a length of about 18 cm (7 in). The adult male has an iridescent dark green head, upper parts and upper breast, a white lower breast and a green barred belly. Bare skin round the eye is orange and the beak is orange/yellow tipped with black. The adult female has coppery-green upper parts, rusty brown crown and nape and green-barred underparts. Both sexes show a white band on the underwing when in flight. The underparts of the juvenile male lack the white lower breast and are more heavily barred.^[7] The voice is a “chweek” uttered while flying, and various whistled twitters.^[8]

Distribution and habitat

This cuckoo has a breeding range that extends from the Himalayas eastwards to Myanmar, China and northern Thailand. Further south it is a vagrant or migrant in northern India, Sri Lanka, Malaysia and Sumatra; it is not known to breed in these areas. It frequents forests and woodland margins.^[7]

Ecology

The Asian emerald cuckoo mainly forages in the upper levels of the canopy where it feeds on insects and other small invertebrates, including ants, caterpillars and bugs. It is a brood parasite, the females laying their eggs in the nests of other birds, such as the crimson sunbird (Aethopyga siparaja) and the little spiderhunter (Arachnothera longirostra).^[8]

Status

C. maculatus has a very wide range but is generally an uncommon species. No particular threats have been recognised and the population is believed to be stable, so the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".^[1]

Related Research Articles

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References

1 2 BirdLife International (2018). "Chrysococcyx maculatus". IUCN Red List of Threatened Species . 2018: e.T22684000A130087242. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22684000A130087242.en . Retrieved 16 November 2021.
↑ Gmelin, Johann Friedrich (1788). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 404.
↑ Brown, Peter (1776). Nouvelles illustrations de zoologie : contenant cinquante planches enlumineés d'oiseaux curieux, et qui non etés jamais descrits, et quelques de quadrupedes, de reptiles et d'insectes, avec de courtes descriptions systematiques (in French and English). London: B. White. p. 28, Plate 13 top.
↑ Boie, Friedrich (1826). "Generalübersicht der ornithologischen Ordnungen, Familien und Gattungen". Isis von Oken (in German). 19. Cols 969–981 [977].
1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "Turacos, bustards, cuckoos, mesites, sandgrouse". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 13 August 2022.
↑ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 105, 236. ISBN 978-1-4081-2501-4.
1 2 Jeyarajasingam, Allen (2012). A Field Guide to the Birds of Peninsular Malaysia and Singapore. Oxford University Press. p. 204. ISBN 978-0-19-963942-7.
1 2 Payne, R.B. (1997). "Asian Emerald Cuckoo (Chrysococcyx maculatus)" . In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 4: Sandgrouse to Cuckoos. Barcelona, Spain: Lynx Edicions. pp. 564–565. ISBN 978-84-87334-22-1.

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[iucn_status_16_November_2021-1] 1 2 BirdLife International (2018). "Chrysococcyx maculatus". IUCN Red List of Threatened Species . 2018: e.T22684000A130087242. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22684000A130087242.en . Retrieved 16 November 2021.

[2] Gmelin, Johann Friedrich (1788). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 404.

[3] Brown, Peter (1776). Nouvelles illustrations de zoologie : contenant cinquante planches enlumineés d'oiseaux curieux, et qui non etés jamais descrits, et quelques de quadrupedes, de reptiles et d'insectes, avec de courtes descriptions systematiques (in French and English). London: B. White. p. 28, Plate 13 top.

[4] Boie, Friedrich (1826). "Generalübersicht der ornithologischen Ordnungen, Familien und Gattungen". Isis von Oken (in German). 19. Cols 969–981 [977].

[ioc-5] 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "Turacos, bustards, cuckoos, mesites, sandgrouse". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 13 August 2022.

[6] Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 105, 236. ISBN 978-1-4081-2501-4.

[Jeyarajasingam-7] 1 2 Jeyarajasingam, Allen (2012). A Field Guide to the Birds of Peninsular Malaysia and Singapore. Oxford University Press. p. 204. ISBN 978-0-19-963942-7.

[hbw-8] 1 2 Payne, R.B. (1997). "Asian Emerald Cuckoo (Chrysococcyx maculatus)" . In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 4: Sandgrouse to Cuckoos. Barcelona, Spain: Lynx Edicions. pp. 564–565. ISBN 978-84-87334-22-1.

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