The Chatham kākā or Chatham Island kākā (Nestor chathamensis) is an extinct parrot species previously found on the Chatham Islands, New Zealand.[3][4][2] The first individuals were thought to belong to the New Zealand kākā (Nestor meridionalis), but detailed examination of the subfossil bones showed that they actually belong to a separate endemic species.[5][2] The species became extinct within the first 150 years of the arrival of the Polynesians around 1500, long before any European settlers.[5] No skins or descriptions are available.[5]
The Chatham kākā 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 kākā (Nestor productus) than to the kea (Nestor notabilis).[5][2]
Ecologyedit
The Chatham kākā was a forest dwelling species[5] of about the same size as the North Islandsubspecies of the kākā, Nestor meridionalis septentrionalis.[4] However, it had a much broader pelvis, enlarged legs, and a beak that was intermediate between kea and kākā.[2] It had no natural predators (as it was bigger than the New Zealand falcon) and, as is often observed with such island endemics, it is believed to have been a poor flyer.[5] This may have made it more vulnerable to human hunting by the Polynesians.
Referencesedit
^"Nestor chathamensis. NZTCS". nztcs.org.nz. Retrieved 19 April 2023.
^ abcdeWood, 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.
^ abDawson, E. W. (1959). "The supposed occurrence of Kakapo, Kaka and Kea in the Chatham Islands". Notornis. 8 (4): 106–114.
^ abcdefMillener, 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.
chatham, kākā, chatham, island, kākā, nestor, chathamensis, extinct, parrot, species, previously, found, chatham, islands, zealand, first, individuals, were, thought, belong, zealand, kākā, nestor, meridionalis, detailed, examination, subfossil, bones, showed,. The Chatham kaka or Chatham Island kaka Nestor chathamensis is an extinct parrot species previously found on the Chatham Islands New Zealand 3 4 2 The first individuals were thought to belong to the New Zealand kaka Nestor meridionalis but detailed examination of the subfossil bones showed that they actually belong to a separate endemic species 5 2 The species became extinct within the first 150 years of the arrival of the Polynesians around 1500 long before any European settlers 5 No skins or descriptions are available 5 Chatham kakaTemporal range Holocene PreꞒ Ꞓ O S D C P T J K Pg N Artist s reconstruction Conservation status Extinct between 1500 and 1650 NZ TCS 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Aves Order Psittaciformes Family Strigopidae Genus Nestor Species N chathamensis Binomial name Nestor chathamensisWood Mitchell Scofield and Tennyson 2014 2 Taxonomy editThe 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 kaka Nestor meridionalis and the extinct Norfolk kaka Nestor productus than to the kea Nestor notabilis 5 2 Ecology editThe Chatham kaka was a forest dwelling species 5 of about the same size as the North Island subspecies of the kaka Nestor meridionalis septentrionalis 4 However it had a much broader pelvis enlarged legs and a beak that was intermediate between kea and kaka 2 It had no natural predators as it was bigger than the New Zealand falcon and as is often observed with such island endemics it is believed to have been a poor flyer 5 This may have made it more vulnerable to human hunting by the Polynesians References edit Nestor chathamensis NZTCS nztcs org nz Retrieved 19 April 2023 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 Portals nbsp Birds nbsp New Zealand Retrieved from https en wikipedia org w index php title Chatham kaka amp oldid 1183995046, wikipedia, wiki, book, books, library,
