Grey peacock-pheasant

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Grey peacock-pheasant
At
Birmingham Nature Centre
, England

Least Concern (IUCN 3.1)[1]
CITES Appendix II (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Galliformes
Family: Phasianidae
Genus: Polyplectron
Species:
P. bicalcaratum
Binomial name
Polyplectron bicalcaratum
Synonyms

Pavo bicalcaratus Linnaeus, 1758[3]
Polyplectron chinquis Temminck, 1815[3]

Polyplectron bicalcaratum

The grey peacock-pheasant (Polyplectron bicalcaratum), also known as Burmese peacock-pheasant, is a large Asian member of the order Galliformes.

Taxonomy

In 1747 the English naturalist

Polyplectron that was introduced in 1807 by the Dutch zoologist Coenraad Jacob Temminck.[6][7] The genus name Polyplectron combines the Ancient Greek polus meaning "many" with plēktron meaning "cock's spur". The specific epithet bicalcaratum combines the Latin bi meaning "two" with calcar, calcaris meaning "spur".[8]

Although several

Other subspecies have been described in the past, but these are not now recognised:[7][9]

  • P. b. ghigii
    Delacour
    & Jabouille, 1924
    – Ghigi's grey peacock-pheasant
  • P. b. bailyi Lowe, 1925 – Lowe's grey peacock-pheasant (disputed)
  • P. b. bakeri Lowe, 1925 – Northern grey peacock-pheasant

One previous subspecies, the Hainan peacock-pheasant (P. b. katsumatae), is now recognised as a separate species by the IOC.[7]

Lowe's grey peacock-pheasant was described from a captive bird of unknown provenance.[10] Similar examples have turned up on occasion, but the validity and – if distinct – home range of this taxon remains unknown. It was theorized to inhabit western Assam or the eastern Himalayas, but this is based on conjecture.

The

sequence data confirms that it belongs to a largely Continental Asian clade together with Germain's peacock-pheasant (P. germaini), but also the "brown" southern species bronze-tailed peacock-pheasant (P. chalcurum) and mountain peacock-pheasant (P. inopinatum).[11]

The ovomucin sequence seems to have evolved convergently or with a decreased mutational rate on the grey and the bronze-tailed peacock-pheasant. Though they are quite similar on the molecular level, the distance and interspersed populations of their closest relatives argue against a much more recently shared common ancestry between them versus the other two "northern" peacock-pheasants. Also, the cytochrome b and D-loop data does not support a closer relationship between P. bicalcaratus and P. chalcurum; overall, as it seems the four species' ancestors separated during a very short timespan.[11]

Note however that in the absence of dedicated

Description

It is a large pheasant, up to 76 cm long and greyish brown with finely spotted green eyespots, an elongated bushy crest, bare pink or yellow facial skin, white throat, and grey iris, bill and legs. The sexes are rather similar, but the female is smaller, darker and less ornamented than the male. The young resemble the female.

Distribution and habitat

The grey peacock-pheasant is distributed in lowland and hill forests of

Malayan Peninsula
. The diet consists mainly of seeds, termites, fruits and invertebrates. The female usually lays two eggs.

Status and conservation

Widespread throughout its large range, the grey peacock-pheasant is evaluated as a Species of

CITES Appendix II, restricting trade in wild-caught birds to preserve its stocks.[13]

References

  1. . Retrieved 12 November 2021.
  2. ^ "Appendices | CITES". cites.org. Retrieved 14 January 2022.
  3. ^ a b Gray, George Robert (1867). List of the Specimens of Birds in the Collection of the British Museum. Vol. 5. London, UK: British Museum. p. 23.
  4. ^ Edwards, George (1747). A Natural History of Uncommon Birds. Vol. Part II. London: Printed for the author at the College of Physicians. p. 67, Plate 67.
  5. ^ 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. 156.
  6. ^ Temminck, Coenraad Jacob (1807). Catalogue systématique du cabinet d'ornithologie et de la collection de quadrumanes (in French and Latin). Amsterdam: Chez C. Sepp Jansz. p. 149.
  7. ^
    Rasmussen, Pamela, eds. (July 2021). "Pheasants, partridges, francolins"
    . IOC World Bird List Version 11.2. International Ornithologists' Union. Retrieved 8 October 2021.
  8. .
  9. ^ Penhallurick, John; Walters, Michael (2005). "Some taxonomic comments on the genus Polyplectron (Phasianidae)". Bulletin of the British Ornithologists' Club. 125 (3): 228–229.
  10. ^ Lowe (1924)
  11. ^ a b Kimball et al. (2001)
  12. ^ Kimball et al. (2001); note that the uncalibrated molecular clock method used here is an outdated technique. The presumed 2% mutation rate is appropriate for small short-lived Neoaves, but probably not for larger and more ancestral birds like Galliformes.
  13. ^ BLI (2008)

External links