The Norfolk kākā (''Nestor productus'') is an
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of large
parrot
Parrots, also known as psittacines (), are birds of the roughly 398 species in 92 genera comprising the order Psittaciformes (), found mostly in tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoid ...
, belonging to the parrot family
Nestoridae
The New Zealand parrot family, Strigopidae,Nestoridae and Strigopidae are described in the same article, Bonaparte, C.L. (1849) ''Conspectus Systematis Ornithologiae''. Therefore, under rules of the ICZN, the first reviser determines priority, w ...
.
The birds were about 38 cm long, with mostly olive-brown upperparts, (reddish-)orange cheeks and throat, straw-coloured breast, thighs, rump and lower abdomen dark orange and a prominent beak.
It inhabited the rocks and treetops of
Norfolk Island
Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...
and adjacent
Phillip Island
Phillip Island (Boonwurrung: ''Corriong'', ''Worne'' or ''Millowl'') is an Australian island about south-southeast of Melbourne, Victoria. The island is named after Governor Arthur Phillip, the first Governor of New South Wales, by explorer ...
.
[ It was a relative of the ]New Zealand kākā
New is an adjective referring to something recently made, discovered, or created.
New or NEW may refer to:
Music
* New, singer of K-pop group The Boyz (South Korean band), The Boyz
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* New (album), ''New'' (album), by Paul McCartn ...
.[
]
Taxonomy
The Norfolk kākā was first described by the naturalist Johann Reinhold Forster
Johann Reinhold Forster (22 October 1729 – 9 December 1798) was a German Continental Reformed church, Reformed (Calvinist) pastor and natural history, naturalist of partially Scottish descent who made contributions to the early ornithology of ...
and his son Georg following the discovery of Norfolk Island by James Cook
James Cook (7 November 1728 Old Style date: 27 October – 14 February 1779) was a British explorer, navigator, cartographer, and captain in the British Royal Navy, famous for his three voyages between 1768 and 1779 in the Pacific Ocean an ...
on 10 October 1774. The description was only published in 1844. Around 1790, John Hunter depicted a bird on a kangaroo apple (''Solanum aviculare''). The bird was formally described by John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, ...
in 1836, from a specimen at the Zoological Society of London
The Zoological Society of London (ZSL) is a charity devoted to the worldwide conservation of animals and their habitats. It was founded in 1826. Since 1828, it has maintained the London Zoo, and since 1931 Whipsnade Park.
History
On 29 ...
. Originally, the individuals from Norfolk Island and Philip Island were considered two separate species, ''Nestor norfolcensis'' (described by August von Pelzeln
August von Pelzeln (10 May 1825, Prague – 2 September 1891 in Oberdöbling) was an Austrian ornithologist. He was a grandson to novelist Karoline Pichler (1769-1843).[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 ...]
as "hoarse, quacking, inharmonious noise, sometimes resembling the barking of a dog".[Higgins, P.J. (ed). (1999). ''Handbook of Australian, New Zealand and Antarctic Birds. Volume 4: Parrots to Dollarbird''. Oxford University Press: Melbourne. ]
Extinction
The Polynesians
Polynesians form an ethnolinguistic group of closely related people who are native to Polynesia (islands in the Polynesian Triangle), an expansive region of Oceania in the Pacific Ocean. They trace their early prehistoric origins to Island Sou ...
who lived at the Island for some time before the arrival of the Europeans hunted the kākā for food before disappearing from the island around the 1600s. It was also hunted for food and trapped as a pet after the arrival of the first settlers in 1788. The species' population suffered heavily after a penal colony
A penal colony or exile colony is a settlement used to exile prisoners and separate them from the general population by placing them in a remote location, often an island or distant colonial territory. Although the term can be used to refer to ...
was maintained from 1788 to 1814, and again from 1825 to 1854. The species likely became extinct in the wild in the early nineteenth century some time during the period of this second penal colony. It was not recorded by Ensign
An ensign is the national flag flown on a vessel to indicate nationality. The ensign is the largest flag, generally flown at the stern (rear) of the ship while in port. The naval ensign (also known as war ensign), used on warships, may be diffe ...
Abel D. W. Best on either Norfolk or Phillip Island in his 1838/1839 diary entries. As Best collected specimens for ornithology
Ornithology is a branch of zoology that concerns the "methodological study and consequent knowledge of birds with all that relates to them." Several aspects of ornithology differ from related disciplines, due partly to the high visibility and th ...
, including the Norfolk parakeet
The Norfolk parakeet (''Cyanoramphus cookii''), also called Tasman parakeet, Norfolk Island green parrot or Norfolk Island red-crowned parakeet, is a species of parrot in the family Psittaculidae. It is endemic to Norfolk Island (located between ...
(which he called " lories", being similar in shape), it is hard to accept that he would not have documented this much more attractive quarry, had the kākā still been present. The last bird in captivity died in London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...
in 1851.
Skins
At least sixteen specimens survive.
Forshaw has measurements of seven skins, one male, one female and five of unknown sex.[
]Naturalis
Naturalis Biodiversity Center ( nl, Nederlands Centrum voor Biodiversiteit Naturalis) is a national museum of natural history and a research center on biodiversity in Leiden, Netherlands. It was named the European Museum of the Year 2021.
Alth ...
in Leiden
Leiden (; in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands. The municipality of Leiden has a population of 119,713, but the city forms one densely connected agglomeration wit ...
has 2 skins; one male (RMNH 110.061) and one female (RMNH 110.068).[ Both individuals originate from Philip Island. The male skin was acquired in 1863 long after the species' assumed disappearance, but it is unknown how it came to Leiden. It is more likely, given Phillip Island was already overrun with feral pigs, rabbits, goats and chicken in late 1838, that the 1863 specimen was purchased from another collection. The single unsexed individual from Philip Island at the Zoölogisch Museum] (ZMA 3164) has been obtained before 1860, and originate probably from the same batch as the two specimens at Naturalis in Leiden.[ An old list of the specimens of birds present in the ]British Museum of Natural History
The Natural History Museum in London is a museum that exhibits a vast range of specimens from various segments of natural history. It is one of three major museums on Exhibition Road in South Kensington, the others being the Science Museum an ...
list two individuals, both from Philip Island. One of the two specimens came from Bell's collection.[
]
References
{{Taxonbar, from=Q379051
Nestor (genus)
Extinct birds of Norfolk Island
Bird extinctions since 1500
Birds described in 1836
Taxa named by John Gould
Species made extinct by human activities
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