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The Chatham kaka or Chatham Island kākā (Nestor chathamensis) is an extinct parrot species previously found on the Chatham Islands, New Zealand.[2][3][1] The first individuals were thought to belong to the kākā (Nestor meridionalis), but detailed examination of the subfossil bones showed that they actually belong to a separate endemic species.[4][1] The species became extinct within the first 150 years of the arrival of the Polynesians around 1550, long before any European settlers.[4] No skins or descriptions are available.[4] Taxonomy[edit] The Chatham kaka is assigned to the genus Nestor in the family Nestoridae, a small group of parrot species native to New Zealand. It is considered to have been more closely related to the kākā (Nestor meridionalis) and the extinct Norfolk kaka (Nestor productus) than to the kea (Nestor notabilis).[4][1] Ecology[edit] The Chatham kaka was a forest dwelling species[4] of about the same size as the North Island subspecies of the kākā, Nestor meridionalis septentrionalis.[3] However, it had a much broader pelvis, enlarged legs, and a beak that was intermediate between kea and kaka.[1] It had no natural predators (it was bigger than the kārearea, or New Zealand falcon) and, as is often observed with such island endemics, it is believed to have been a poor flyer.[4] References[edit]

^ a b c d e Wood, J.R.; Mitchell K. J.; Scofield R. P.; Tennyson A. J. D.; Fidler A. E.; Wilmshurst J. M.; Llamas B.; Cooper A. (2014). "An extinct nestorid parrot (Aves, Psittaciformes, Nestoridae) from the Chatham Islands, New Zealand". Zoological Journal of the Linnean Society. 172: 185–199. doi:10.1111/zoj.12164.  ^ Forbes, H. O. (1893). "A list of the birds inhabiting the Chatham Islands". Ibis. 35 (4): 521–546. doi:10.1111/j.1474-919X.1893.tb01240.x.  ^ a b Dawson, E. W. (1959). "The supposed occurrence of Kakapo, Kaka and Kea in the Chatham Islands". Notornis. 8 (4): 106–114.  ^ a b c d e f Millener, P. R. (1999). "The history of the Chatham Islands' bird fauna of the last 7000 years – a chronicle of change and extinction. Proceedings of the 4th International meeting of the Society of Avian Paleontology and Evolution (Washington, D.C., June 1996)" (PDF). Smithsonian Contributions to Paleobiology. 89: 85–109. 

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Kea, kaka and kakapo (family: Strigopidae)

Family

Genus

Species (extinctions: † indicates a species confirmed to be extinct; ₴ indicates evidence only from sub-fossils)

Nestoridae

Nestor

Kea New Zealand kaka Norfolk kaka † Chatham kaka † ₴

Strigopidae

Strigops

Kakapo (supporting pages: List of kakapo Sirocco (parrot))

List of Strigopoidea Birds of New Zealand

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Birds of New Zealand

Common birds

Bellbird (korimako) Brown creeper (pipipi) Buff-banded rail (moho-pereru) Dabchick (weweia) New Zealand falcon (kārearea) Fantail (pīwakawaka) Grey warbler (riroriro) Sacred kingfisher (kōtare) Long-tailed cuckoo (koekoeā) New Zealand pigeon (kererū) Pipit (pīhoihoi) New Zealand dotterel (tūturiwhatu) South Island robin North Island robin New Zealand scaup (pāpango) Paradise shelduck (pūtangitangi) Pukeko (pūkeko) Rifleman (tītipounamu) Rock wren (pīwauwau) Shining cuckoo (pipiwharauroa) Silvereye (tauhou) Spotted shag (parekareka) Tomtit (miromiro) Tui (tūī) Whitehead (pōpokotea) Wrybill (ngutuparore)

Flightless birds

Great spotted kiwi (roroa) Little spotted kiwi (kiwi pukupuku) North Island brown kiwi (roroa) Southern brown kiwi (tokoeka) Yellow-eyed penguin (hoiho) Kakapo (kākāpō) South Island takahē Fiordland penguin (tawaki) Weka Blue penguin (kororā)

Endangered endemic birds (flying)

Saddleback (tieke) Fernbird (mātātā) Kaka (kākā) New Zealand storm petrel (takahikare) North Island kōkako South Island kōkako New Zealand fairy tern (tara-iti) Orange-fronted parakeet (kakariki) Black stilt (kakī) Blue duck (whio) Yellowhead (mohua) Kea Stitchbird (hihi)

Extinct birds

South Island piopio (piopio) New Zealand bittern (kaoriki) New Zealand quail (koreke) Huia Haast's eagle Moa North Island adzebill South Island adzebill New Zealand merganser (rakiraki maungahuka) Chatham Island merganser Bush wren (mātuhituhi) Stout-legged wren Lyall's wren Chatham kaka Laughing owl (whēkau) Waitaha penguin Eyles' harrier North Island snipe South Island snipe Forbes's snipe Snipe-rail Imber's petrel Scarlett's shearwater North Island takahē New Zealand owlet-nightjar New Zealand musk duck New Zealand swan (poūwa)

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Taxon identifiers

Wd: Q86

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