The pheasant pigeon (''Otidiphaps nobilis'') is a species of large

terrestrial Terrestrial refers to things related to land or the planet Earth. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to ...

pigeon Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...

. It is the only species of the monotypic genus ''Otidiphaps''. The pheasant pigeon is found in the primary

rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...

s of

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

and nearby islands. It ranges primarily over hilly and lower mountain areas, but can also be found in

lowland Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland. Definitions Upland and lowland are portions of ...

Taxonomy and systematics

The genus name makes reference to its similarities to the

bustard Bustards, including floricans and korhaans, are large, terrestrial birds living mainly in dry grassland areas and on the steppes of the Old World. They range in length from . They make up the family Otididae (, formerly known as Otidae). Bustards ...

family (Otidae). Its common name reflects its adaptation to living on the forest floor in the fashion of a South East Asian

pheasant Pheasants ( ) are birds of several genera within the family (biology), family Phasianidae in the order (biology), order Galliformes. Although they can be found all over the world in introduced (and captive) populations, the pheasant genera na ...

Subspecies

Commonly, there are four

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

recognized that differ primarily in the presence or absence of a small crest and in the colour of the

nape The nape is the back of the neck. In technical anatomical/medical terminology, the nape is also called the nucha (from the Medieval Latin rendering of the Arabic , "spinal marrow"). The corresponding adjective is ''nuchal'', as in the term ''nu ...

: * White-naped pheasant pigeon (''O. n. aruensis'') – Rothschild, 1928: Found on the

Aru Islands The Aru Islands Regency ( id, Kabupaten Kepulauan Aru) is a group of about 95 low-lying islands in the Maluku Islands of eastern Indonesia. It also forms a regency of Maluku Province, with a land area of . At the 2011 Census the Regency had a po ...

, Vulnerable * Green-naped pheasant pigeon (''O. n. nobilis'') –

Gould Gould may refer to: People * Gould (name), a surname Places United States * Gould, Arkansas, a city * Gould, Colorado, an unincorporated community * Gould, Ohio, an unincorporated community * Gould, Oklahoma, a town * Gould, West Virginia, a ...

, 1870: Found on western New Guinea,

Batanta Batanta is one of the four major islands in the Raja Ampat Islands in Southwest Papua province, Indonesia. Its area is 453 km² and its highest point is 1184 m. The Pitt Strait separates it from Salawati, while the Dampier Strait separate ...

and

Waigeo Waigeo is an island in Southwest Papua province of eastern Indonesia. The island is also known as Amberi, or Waigiu. It is the largest of the four main islands in the Raja Ampat Islands archipelago, between Halmahera and about to the north-w ...

Islands, Least concern. * Grey-naped pheasant pigeon (''O. n. cervicalis'') – Ramsay, EP, 1880: Found on eastern and south-eastern New Guinea, Least concern. * Black-naped pheasant pigeon (''O. n. insularis'') – Salvin & Godman, 1883: Found on

Fergusson Island Fergusson Island is the largest island of the D'Entrecasteaux Islands, in Papua New Guinea. It has an area of , and mostly consists of mountainous regions, covered by rain forests. There are three large volcanoes on the island. Fergusson Island ...

, Critically Endangered. Some authors however recognize the four subspecies as four different species, a classification scheme followed by the IUCN.

Description

The pheasant pigeon resembles a pheasant in external

morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines * Morphology (archaeology), study of the shapes or forms of artifacts * Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies ...

, 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 Galliformes is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl. Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are often ...

birds occur in New Guinea, and the pheasant pigeon has filled the

ecological niche In ecology, a niche is the match of a species to a specific environmental condition. Three variants of ecological niche are described by It describes how an organism or population responds to the distribution of resources and competitors (for ...

of a

partridge A partridge is a medium-sized Galliformes, galliform bird in any of several genera, with a wide Indigenous (ecology), native distribution throughout parts of Europe, Asia and Africa. Several species have been introduced to the Americas. They a ...

or small pheasant (while the larger '' Goura'' crowned pigeons have a lifestyle similar to larger pheasants,

grouse Grouse are a group of birds from the order Galliformes, in the family Phasianidae. Grouse are presently assigned to the tribe Tetraonini (formerly the subfamily Tetraoninae and the family Tetraonidae), a classification supported by mitochondr ...

turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...

s). It is a highly secretive species, feeding on seeds and fallen

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

s. It nests on the ground below trees and bushes, laying one

egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the a ...

that it incubates for around four weeks. Both adults incubate and look after the young, feeding regurgitated

crop milk Crop milk is a secretion from the lining of the crop of parent birds that is regurgitated to young birds. It is found among all pigeons and doves where it is referred to as pigeon milk. An analog to crop milk is also secreted from the esopha ...

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

habitats, eating fallen fruits and seeds, in the

. As they avoid human settlements, the little that is known about their behavior comes from observation at zoos. pheasant pigeon arp.jpg, ''O. n. nobilis'' Pheasant Pigeon RWD.jpg, ''O. n. nobilis'' in a zoo OtidiphapsInsularisKeulemans.jpg, ''O. n. insularis'' Otidiphaps nobilis.jpg, Captive ''O. n. aruensis'' (vulnerable)

Status and conservation

It is believed that the species is slowly declining due to

deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated d ...

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 In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

) 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, but was found on

in late 2022.

References

* del Hoyo, Elliott and Sargatal (eds.). ''Handbook of the Birds of the World'', Vol 4. ,

External links

* {{Taxonbar, from=Q662429

pheasant pigeon 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 rang ...

Birds of New Guinea Otidiphabinae