The goliath imperial pigeon (''Ducula goliath''), also known as the New Caledonian imperial pigeon and the notou, is a species of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...

in the family

Columbidae 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

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

to New Caledonia. Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

is humid forests. The

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of nat ...

(IUCN) has assessed it as a near-threatened species.

Taxonomy

This species was described as ''Carpophaga'' (''Phænorhina'') ''goliath'' by

George Robert Gray George Robert Gray FRS (8 July 1808 – 6 May 1872) was an English zoologist and author, and head of the ornithological section of the British Museum, now the Natural History Museum, in London for forty-one years. He was the younger brother ...

in 1859. It is a

monotypic species In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

Description

The goliath imperial pigeon is about long, making it one of the largest species of arboreal pigeon. It is a slender bird with a long tail, weighing . The head and neck are blue-grey. The upperparts and wings are sooty-grey, with a grey panel on the primaries' bases. The tail is black and has a dark chestnut band. The neck and upper breast have bifurcated feathers, so they appear shaggy or furrowed. The lower breast is sooty-grey, the belly and flanks are purplish-chestnut, and the vent is buffy-yellow. The eye is bright red, and the beak and feet are pinkish or vinous-red. The juvenile bird has a duller plumage, with no bifurcations.

Distribution and habitat

This pigeon is endemic to New Caledonia, on Grande Terre and the Isle of Pines. Its habitat is mostly humid

primary forest An old-growth forestalso termed primary forest, virgin forest, late seral forest, primeval forest, or first-growth forestis a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological feature ...

, up to in elevation.

Behaviour

The goliath imperial pigeon is found singly or in pairs. It feeds on fruits, leaves and flowers, and it moves locally to eat fruits. Early in the morning, it warms itself on a branch. Its call is a low ''oom'', and it also gives a ''gkrarr'' at dusk. It breeds from June to December. The nest, in diameter, is woven from twigs and built on a branch. One white egg is laid and incubated by both parents.

Status

This species's population size is estimated at about 10,000 birds. It is hunted as game both legally and illegally. Traditionally, it is hunted for feasts from late February to early May. Hunting is only legal during the week-ends of April though, with a limit on the number of captures per day per hunter. The IUCN considers the species to be safe at present, but it may decline in the future because of hunting, especially if hunting laws and the hunting season are changed. The IUCN has assessed it as a near-threatened species.

References

{{Taxonbar, from=Q913115 Ducula Endemic birds of New Caledonia Birds described in 1859 Taxa named by George Robert Gray Taxonomy articles created by Polbot