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Raiatea parakeet

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Raiatea parakeet

Extinct (c. 1777)  (IUCN 3.1)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Psittaculidae
Genus: Cyanoramphus
Species:
C. ulietanus
Binomial name
Cyanoramphus ulietanus
(J. F. Gmelin, 1788)
Synonyms

Psittacus ulietanus J. F. Gmelin, 1789
Platycercus tannaensis Finsch, 1868
Psittacus fuscatus von Pelzeln, 1873

The Raiatea parakeet or Society parakeet (Cyanoramphus ulietanus), also known as the Society kakariki or brown-headed parakeet, is an extinct parakeet of the genus Cyanoramphus.

Description

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The Raiatea parakeet averaged 25 cm (9.75 to 10 inches) in length. Its head was chocolate brown, paler on the neck, rump, and wings. The bill showed a pale bluish grey hue and had a black tip. The lower back and tail coverts exhibited a rufous brown colouring. The underwing coverts and outer webs to flight feathers were greyish blue. The breast, abdomen, and undertail coverts were olive yellow. The mid-rectrices were olive brown and outer rectrices grey. The irises were orange red in adults and brown in juveniles. The feet were greyish brown. Males and females were not sexually dimorphic.

Distribution and habitat

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The Raiatea parakeet was endemic to Raiatea, the second largest island of the Society Islands.[1] It was probably a forest species, as this was the native habitat on this island.

Status

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It is presumed to have gone extinct shortly after its discovery in 1773. The causes of its decline were likely habitat loss due to forest clearing, hunting, and invasive species.[1]

There are only two museum specimens known to exist. The date of their origin was discussed, with Erwin Stresemann (1950) and James Greenway (1958) suggesting 1773 or 1774. However, in 1979 the ornithologist David G. Medway from New Zealand claimed that the two specimens were taken in November 1777 during the third circumnavigation by James Cook. He based the claim on the travel diary entries by Joseph Banks. The specimens are in the Natural History Museum in London and in the Naturhistorisches Museum, Vienna.

References

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  1. ^ a b "Raiatea Parakeet – Cyanoramphus ulietanus – Birds of the World". birdsoftheworld.org. doi:10.2173/bow.raipar1.01. S2CID 241386861. Retrieved 21 April 2020.
  • Greenway, James (1967): Extinct and Vanishing Birds of the World
  • Day, David (1981): The Doomsday Book of Animals
  • Fuller, Errol (2000): Extinct Birds
  • Flannery, Tim & Schouten, Peter (2001): A Gap in Nature
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