Wikipedia

Tūī

The tūī (Prosthemadera novaeseelandiae) is a medium-sized bird native to New Zealand. It is blue, green, and bronze coloured with a distinctive white throat tuft (poi). It is an endemic passerine bird of New Zealand, and the only species in the genus Prosthemadera. It is one of the largest species in the diverse Australasian honeyeater family Meliphagidae, and one of two living species of that family found in New Zealand, the other being the New Zealand bellbird (Anthornis melanura). The tūī has a wide distribution in the archipelago, ranging from the subtropical Kermadec Islands to the sub-Antarctic Auckland Islands, as well as the main islands.

Tūī
Tūī with a white throat feather on a flax flower stalk
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Meliphagidae
Genus: Prosthemadera
Gray, GR, 1840
Species:
P. novaeseelandiae
Binomial name
Prosthemadera novaeseelandiae
(Gmelin, JF, 1788)

Taxonomy

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Europeans first encountered the tūī in 1770 at Queen Charlotte Sound on the north coast of New Zealand's South Island during Captain James Cook's first voyage to the Pacific Ocean.[2][3] Specimens were brought back to England and an engraving of a tūī by the English naturalist Peter Brown, which he called "The New Zeland creeper", was published in 1776.[4] The tūī was seen on all three of Cook's voyages.[3] Cook's account of his second voyage to the Pacific was published in 1777 and included a description and an illustration of the tūī. He used the names "poly-bird" and "poe-bird". He praised the bird: "The flesh is most delicious, and was the greatest luxury the woods afforded us."[5] In 1782 the English ornithologist John Latham included the tūī as the "poë bee-eater" in his book A General Synopsis of Birds. Latham described a specimen in the Leverian Museum in London.[6] No author had introduced a scientific name, but when in 1788 the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's Systema Naturae, he included the tūī with a short description, coined the binomial name Merops novaeseelandiae and cited the publications by Brown, Cook and Latham.[7] The tūī is now the only species placed in the genus Prosthemadera that was introduced in 1840 by the English zoologist George Gray.[8][9] The genus name combines the Ancient Greek prosthema meaning "appendage" with dera meaning "neck".[10]

Two subspecies are recognised:[9]

The bird's name comes from the Māori language. The plural is tūī in modern New Zealand English, or ngā tūī in Māori usage;[11] some speakers still use the '-s' suffix to produce the Anglicised form tūīs to indicate plurality, but this practice is becoming less common.[12] For many years the prevailing spelling was tui without the macrons that indicate long vowels, but spelling Māori loanwords with macrons is now common in New Zealand English.[13][14] The International Ornithologists' Union (IOC), which has a policy of not using accents,[15] lists Tui as the bird's English name.[16] Early European colonists called it the parson bird[17] or mocking-bird[18] but these names are no longer used.[19]

The closest living relative to tūī is the New Zealand bellbird; genetic analysis indicates its ancestor diverged from a lineage that gave rise to the New Zealand and Chatham bellbirds around 5 million years ago.[20] The cladogram below shows this relationship:

Plain honeyeater (Pycnopygius ixoides)

Marbled honeyeater (Pycnopygius cinereus)

Tūī (Prosthemadera novaeseelandiae)

New Zealand bellbird (Anthornis melanura)

Chatham bellbird (Anthornis melanocephala)

Description

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The tūī is a large honeyeater, 27 to 32 cm (11–13 in) in length. The Chatham Islands subspecies is larger on average than the nominate subspecies, and heavier. Males tend to be heavier than females. Nominate males weigh between 65–150 g (2.3–5.3 oz), and females 58–105 g (2.0–3.7 oz). Males of the Chatham subspecies are 89–240 g (3.1–8.5 oz) and females 89–170 g (3.1–6.0 oz).[21]

At first glance the bird appears completely black except for a small tuft of white feathers at its neck and a small white wing patch, causing it to resemble a parson in clerical attire. On closer inspection (see image) it can be seen that tūī have brown feathers on the back and flanks, a multicoloured iridescent sheen that varies with the angle from which the light strikes them, and a dusting of small, white-shafted feathers on the back and sides of the neck that produce a lacy collar.

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    Painting of adult and young tūī
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    Several photos showing a tūī in flight
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Distribution and habitat

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Tūī are native to New Zealand, and are found throughout the country, particularly the North Island, the west and south coasts of the South Island, Stewart Island / Rakiura and the Chatham Islands, where an endangered sub-species particular to these islands exists. Other populations live on Raoul Island in the Kermadecs,[22] and in the Auckland Islands (where, with the New Zealand bellbird, it is the most southerly species of honeyeater).[23] Traditionally, Māori ate tūī that had been preserved in calabashes or gourds. Populations have declined considerably since European settlement, mainly as a result of widespread habitat destruction and predation by mammalian invasive species.[citation needed]

Nonetheless, the species is considered secure and has made recoveries in some areas, particularly after removal of livestock has allowed vegetation to recover. Predation by introduced species remains a threat, particularly brushtail possums (which eat eggs and chicks), cats, stoats, the common myna (which competes with tūī for food and sometimes takes eggs), blackbirds, and rats.[21]

Tūī prefer broadleaf forests at low altitudes, although have been recorded up to 1500 metres.[21] They will tolerate quite small remnant patches, regrowth, exotic plantations and well-vegetated suburbs. They are one of the most common birds found in urban Wellington. Tūī are usually seen singly, in pairs, or in small family groups, but will congregate in large numbers at suitable food sources, often in company with silvereyes, bellbirds, or kererū (New Zealand pigeon) in any combination. Generally, when interspecific competition for the same food resources among New Zealand's two species of honeyeater occurs, there is a hierarchy with the tūī at the top and bellbirds subordinate. The latter are thus frequently chased off by tūī at a food source such as a flowering flax plant.[21]

Behaviour and ecology

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1888 illustration of a tūī nest

Male tūī can be extremely aggressive, chasing all other birds (large and small) from their territory with loud flapping and sounds akin to rude human speech. This is especially true of other tūī when possession of a favoured feeding tree is impinged. Birds will often erect their body feathers in order to appear larger in an attempt to intimidate a rival. They have even been known to mob harriers and magpies.[24]

The powered flight of tūī is quite loud as they have developed short wide wings, giving excellent maneuverability in the dense forest they prefer, but requiring rapid flapping. They can be seen to perform a mating display of rising at speed in a vertical climb in clear air, before stalling and dropping into a powered dive, then repeating.[24] Much of this behaviour is more notable during the breeding season of early spring—September and October. Females alone build nests of twigs, grasses and mosses.[24]

Feeding

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Tūī feeding on kōwhai flower

Nectar is the normal diet but fruit and insects are frequently eaten, and pollen and seeds more occasionally. Particularly popular is the New Zealand flax, whose nectar sometimes ferments, resulting in the tūī flying in a fashion that suggests that they might be drunk. They are the main pollinators of flax, kōwhai, kaka beak and some other plants. Note that the flowers of the three plants mentioned are similar in shape to the tūī's beak—a vivid example of mutualistic coevolution.[25]

Breeding

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The large untidy shallow cup-shaped nest is built by both sexes, but the female does most of the work. The eggs usually have a pale pink or white background with blotches of pale red mostly at the larger end. The clutch is usually 4 eggs and the average size of an eggs is 27.5 mm × 20.3 mm (1.08 in × 0.80 in). The eggs are incubated by the female alone for 14 days. Both sexes feed the young and remove the faecal sacs. The chicks fledge after around 20 days. The parents continue to feed the fledglings for another couple of weeks.[26] The birds are nidicolous.[27]

Songs and calls

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Tūī singing 1
Tūī singing at Johnsonville in Wellington
Tūī singing 2
Tūī singing at Trelissick Park in Wellington
Problems playing these files? See media help.

Tūī are known for their noisy, unusual, sometimes soulful calls, different for each individual, that combine bellbird-like notes with clicks, cackles, timber-like creaks and groans, and wheezing sounds.[28]

Tūī have a complex variety of songs and calls, much like parrots.[29] They also resemble parrots in their ability to clearly imitate human speech,[30] and were trained by Māori to replicate complex speech.[31] They also re-create sounds like glass shattering, car alarms, classical music and advertising jingles.[28]

All birds have a sound producing organ called a syrinx, which is typically controlled with two sets of muscles. Songbirds or passerines like tūī have nine pairs of muscles giving them the ability to produce much more complex vocalisations, and they can be seen to be very physically involved with their songs. Their dual voice box allow tūī to make two sounds at the same time.[28] Tūī song also exhibits geographical, microgeographic, seasonal, sex and individual variation.[32][33][34][35] Tūī will also sing at night, especially around the full moon period.[36]

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References

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  1. ^ BirdLife International (2017). "Prosthemadera novaeseelandiae". IUCN Red List of Threatened Species. 2017: e.T22704472A118658026. doi:10.2305/IUCN.UK.2017-3.RLTS.T22704472A118658026.en. Retrieved 11 November 2021.
  2. ^ Parkinson, Sydney (1773). A Journal of a Voyage to the South Seas in His Majesty's Ship the Endeavour (2nd ed.). London: Printed for Stanfield Parkinson. pp. 89, 115, Errata.
  3. ^ a b Medway, David G. (1976). "Extant types of New Zealand birds from Cook's voyages. Part 2: The type specimens" (PDF). Notornis. 23 (2): 120–137 [126–128, 133].
  4. ^ Brown, Peter (1776). Nouvelles illustrations de zoologie : contenant cinquante planches enlumineés d'oiseaux curieux, et qui non etés jamais descrits, et quelques de quadrupedes, de reptiles et d'insectes, avec de courtes descriptions systematiques (in French and English). London: B. White. p. 18, Plate 9.
  5. ^ Cook, James; Furneaux, Tobias (1777). A Voyage Towards the South Pole, and Round the World : Performed in His Majesty's ships the Resolution and Adventure, in the Years 1772, 1773, 1774, and 1775. Vol. 1 (2nd ed.). London: W. Strahan and T. Cadell. p. 98; Plate 52.
  6. ^ Latham, John (1782). A General Synopsis of Birds. Vol. 1, Part 2. London: Printed for Leigh and Sotheby. p. 682, No. 17.
  7. ^ Gmelin, Johann Friedrich (1788). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 464.
  8. ^ Gray, George Robert (1840). A List of the Genera of Birds : with an Indication of the Typical Species of Each Genus. London: R. and J.E. Taylor. p. 15.
  9. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2023). "Honeyeaters". IOC World Bird List Version 13,1. International Ornithologists' Union. Retrieved 24 March 2023.
  10. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 318. ISBN 978-1-4081-2501-4.
  11. ^ "Understanding the Māori Dictionary Entries (Māori Dictionary)". Retrieved 21 February 2014.
  12. ^ Hay; et al. (2008). New Zealand English. Edinburgh: Edinburgh University Press. p. 74.
  13. ^ Crewdson, Patrick (10 September 2017). "Why Stuff is introducing macrons for te reo Māori words". Stuff. Retrieved 17 August 2021.
  14. ^ Nicholls, Jenny (23 April 2021). "These grumpy old pūkeko need to get off the grass". Stuff. Retrieved 17 August 2021.
  15. ^ "Patronyms and Accents – IOC World Bird List". Retrieved 24 September 2021.
  16. ^ Gill, Frank; Donsker, David, eds. (2021). "Honeyeaters". World Bird List Version 11.2. International Ornithologists' Union. Retrieved 21 September 2021.
  17. ^ Walter Lawry Buller (1888). A History of the Birds of New Zealand. p. 95.
  18. ^ Thomson, Arthur Saunders (1859). The Story of New Zealand, Past and Present, Savage and Civilised. London: J. Murray. p. 24.
  19. ^ Jennifer Hay; Margaret McLagan; Elizabeth Gordon (2008). New Zealand English. Edinburgh University Press. ISBN 9780748625307.
  20. ^ Marki, Petter Z.; Jønsson, Knud A.; Irestedt, Martin; Nguyen, Jacqueline M.T.; Rahbek, Carsten; Fjeldså, Jon (2017). "Supermatrix phylogeny and biogeography of the Australasian Meliphagides radiation (Aves: Passeriformes)". Molecular Phylogenetics and Evolution. 107: 516–29. doi:10.1016/j.ympev.2016.12.021. hdl:10852/65203. PMID 28017855.
  21. ^ a b c d Higgins, P.J.; Christidis, L.; Ford, H.A. (2008). "Family Meliphagidae (Honeyeaters)". In del Hoyo, J.; Elliott, A.; Christie, D.A. (eds.). Handbook of the Birds of the World. Vol. 13: Penduline-tits to Shrikes. Barcelona, Spain: Lynx Edicions. pp. 498–691 [587]. ISBN 978-84-96553-45-3.
  22. ^ Veitch, C.R.; Miskelly, C.M.; Harper, G.A.; Taylor, G.A.; Tennyson, A.J.D. (2004). "Birds of the Kermadec Islands, South-west Pacific" (PDF). Notornis. 51: 61–90.
  23. ^ Department of Conservation (1999) New Zealand's Subantarctic Islands. Reed Books: Auckland ISBN 0-7900-0719-3
  24. ^ a b c "Tui Facts – New Zealand native land birds (Department of Conservation)". Retrieved 21 September 2007.
  25. ^ Kelly, Dave; et al. (2010). "Mutualisms with the wreckage of an avifauna: the status of bird pollination and fruit-dispersal in New Zealand" (PDF). New Zealand Journal of Ecology. 34 (1): 66–85. Archived from the original (PDF) on 29 December 2011. Retrieved 12 October 2011.
  26. ^ Higgins, Peter & Steele 2001, pp. 1201–1203.
  27. ^ Bosque, Carlos; Bosque, Maria Teresa (1995). "Nest Predation as a Selective Factor in the Evolution of Developmental Rates in Altricial Birds". The American Naturalist. 145 (2). [University of Chicago Press, American Society of Naturalists]: 234–260. ISSN 0003-0147. JSTOR 2463125. Retrieved 28 July 2024.
  28. ^ a b c "New Zealand Geographic – Tui". New Zealand Geographic. Retrieved 4 May 2020.
  29. ^ Tui one of the world's most intelligent birds Archived 2014-02-01 at the Wayback Machine, 3 News. accessed 2012-10-16.
  30. ^ Videos of Woof Woof the talking tūī, Whangarei Native Bird Recovery Centre. Accessed 2010-09-14.
  31. ^ The tūī (Prosthemadera novaeseelandiae), Te Ara Encyclopedia of New Zealand. accessed 2012-04-11.
  32. ^ Hill, S.D.; Ji, W.; Parker, K.A.; Amiot, C.; Wells, S.J. (2013). "A comparison of vocalisations between mainland tui (Prosthemadera novaeseelandiae novaeseelandiae) and Chatham Island tui (P. n. chathamensis)" (PDF). New Zealand Journal of Ecology. 37 (2): 214–223.
  33. ^ Hill, S.D.; Ji, W. (2013). "Microgeographic variation in song phrases of tui (Prosthemadera novaeseelandiae)" (PDF). Notornis. 60 (3): 262–263.
  34. ^ Hill, S.D.; Amiot, C.; Ludbrook, M.R.; Ji, W. (2015). "Seasonal variation in the song structure of tui (Prosthemadera novaeseelandiae)" (PDF). New Zealand Journal of Ecology. 39 (1): 110–115. JSTOR 26198701.
  35. ^ Hill, S.D.; Pawley, M.D.M.; Ji, W. (2017). "Local habitat complexity correlates with song complexity in a vocally elaborate honeyeater". Austral Ecology. 42 (5): 590–596. doi:10.1111/aec.12477.
  36. ^ Paul, S.R.; McKenzie, H.R. (1975). "A bushman's seventeen years of noting birds – Introduction and part A (Bellbird and Tui)" (PDF). Notornis. 22 (2): 122–130.

Sources

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