Pheasant pigeon

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Pheasant pigeon
Otidiphaps nobilis -Cincinnati Zoo, Ohio, USA-8a.jpg
O. n. aruensis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Columbiformes
Family: Columbidae
Genus: Otidiphaps
Gould, 1870
Species:
O. nobilis
Binomial name
Otidiphaps nobilis
Gould, 1870

The pheasant pigeon (Otidiphaps nobilis) is a species of large terrestrial pigeon. It is the only species of the monotypic genus Otidiphaps. The pheasant pigeon is found in the primary rainforests of New Guinea and nearby islands. It ranges primarily over hilly and lower mountain areas, but can also be found in lowlands.

Contents

Taxonomy and systematics

The genus name makes reference to its similarities to the bustard family (Otidae). Its common name reflects its adaptation to living on the forest floor in the fashion of a South East Asian pheasant.

Subspecies

Commonly, there are four subspecies recognized that differ primarily in the presence or absence of a small crest and in the colour of the nape: [1]

Some authors however recognize the four subspecies as four different species, a classification scheme followed by the IUCN. [6] [3]

Description

The pheasant pigeon resembles a pheasant in external morphology, particularly in its laterally compressed tail and rounded wings. They have glossy black heads, undersides, rears and lower backs, and short rounded brown wings, and a white, green, grey, or black nape depending on the subspecies. No galliform birds occur in New Guinea, and the pheasant pigeon has filled the ecological niche of a partridge or small pheasant (while the larger Goura crowned pigeons have a lifestyle similar to larger pheasants, grouse or turkeys). It is a highly secretive species, feeding on seeds and fallen fruits. It nests on the ground below trees and bushes, laying one egg that it incubates for around four weeks. Both adults incubate and look after the young, feeding regurgitated crop milk to their young (a common practice for most pigeons).

They have a range of calls including a drilling-like sound, a typical pigeon cooing call and a loud "wu-huwoooooa" call that rises and falls in pitch before trailing off at the end.

They are found in rainforest habitats, eating fallen fruits and seeds, in the Aru Islands. As they avoid human settlements, the little that is known about their behavior comes from observation at zoos.

Status and conservation

It is believed that the species is slowly declining due to deforestation of their habitats from pressure for logging and agricultural space. Because it is tied to primary forests, and is unique within the pigeon family, it is considered a genus that requires further investigation and monitoring. The green-naped pheasant pigeon (nominate subspecies) and the grey-naped pheasant pigeon are not considered threatened, but the black-naped pheasant pigeon is considered critically endangered and the white-naped pheasant pigeon is vulnerable. The black-naped pheasant pigeon was for a long time known to science only from the type specimen collected in 1882, [7] but was found on Fergusson Island in late 2022. [8] [9]

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References

  1. Gill, Frank; Donsker, David, eds. (2018). "Pigeons". World Bird List Version 8.1. International Ornithologists' Union. Retrieved 4 February 2018.
  2. BirdLife International (2016). "Otidiphaps aruensis". IUCN Red List of Threatened Species . 2016: e.T22728031A94968761. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22728031A94968761.en . Retrieved 18 November 2021.
  3. 1 2
  4. BirdLife International (2016). "Otidiphaps cervicalis". IUCN Red List of Threatened Species . 2016: e.T22725258A94888451. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22725258A94888451.en . Retrieved 18 November 2021.
  5. BirdLife International (2021). "Otidiphaps insularis". IUCN Red List of Threatened Species . 2021: e.T22726273A216252040. Retrieved 21 November 2022.
  6. Comparison of IOC 8.1 with other world lists, by IOC World Bird List: http://www.worldbirdnames.org/ioc-lists/master-list-2/ Archived 2016-10-02 at the Wayback Machine
  7. Gregg, Jason; Nason, Doka; Boersma, Jordan (September 2020). "Survey of the montane avifauna of Fergusson Island, Milne Bay Province, Papua New Guinea". Bulletin of the British Ornithologists' Club. 140 (3): 309–320. doi: 10.25226/bboc.v140i3.2020.a4 . ISSN   0007-1595. S2CID   221823968.
  8. Leonard, Pat (17 November 2022). "Lost pigeon found after more than a century". Cornell Lab of Ornithology.
  9. Sottile, Zoe (19 November 2022). "This bird hadn't been documented by scientists since 1882. Then they captured video of it in Papua New Guinea". CNN . Retrieved 20 November 2022.