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Taiwan blue magpie

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Taiwan blue magpie
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Corvidae
Genus: Urocissa
Species:
U. caerulea
Binomial name
Urocissa caerulea
Gould, 1863

The Taiwan blue magpie[2] (Urocissa caerulea), also called the Taiwan magpie, Formosan blue magpie (Chinese: 臺灣藍鵲; pinyin: Táiwān lán què), or the "long-tailed mountain lady" (Chinese: 長尾山娘; pinyin: Chángwěi shānniáng; Taiwanese Hokkien: Tn̂g-boé soaⁿ-niû), is a bird species in the crow family. It is endemic to Taiwan.

Taxonomy and systematics

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The Taiwan blue magpie was collected by Robert Swinhoe and described by John Gould.[3] Swinhoe translated the magpie's Hokkien name into English, calling it the "Long-tailed Mountain-Nymph".[4] The species is sometimes placed in the genus Cissa. It forms a superspecies with the yellow-billed blue magpie (Urocissa flavirostris) and the red-billed blue magpie (Urocissa erythroryncha). The species is monotypic.[5]

Distribution and habitat

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The Taiwan blue magpie is endemic to Taiwan. It lives in broadleaf forests at elevations of 300–1,200 m (980–3,940 ft).[5]

Description

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Taiwan blue magpie in flight

It is 63–68 cm (25–27 in) in length. The tail measures around 34–42 cm (13–17 in) in length, and the wings are 20 cm (7.9 in) long.[6] It weighs 254–260 g (9.0–9.2 oz).[5]

The plumages of the male and female are similar. The head, neck and breast are black. The eyes are yellow, and the bill and feet are red. The rest of the plumage is mostly blue. The wings and tail feathers have white tips.[7] The underwing-coverts are dark grey, and the flight feathers are light grey. The uppertail-coverts have black tips.[6] The central pair of tail feathers are the longest. The other tail feathers have black bands. Chicks are greyish, with a short tail and greyish-blue eyes.[7]

Behavior

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Taiwan blue magpies are not very afraid of people. They can be found near human residences in the mountains or newly cultivated lands.[8] They are gregarious and are usually found in groups of three to twelve. The birds often fly in a line, following each other.[7] This is sometimes called "long-tailed formation".[9]

Similar to other members of the crow family, they have a raucous call which is described as a high-pitched cackling chatter, kyak-kyak-kyak-kyak. Other calls include ga-kang, ga-kang, kwee-eep and gar-suee.[10]

Food and feeding

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Taiwan blue magpies are scavengers and omnivores. Their diet includes snakes, rodents, small insects, carrion, eggs and chicks of other birds, plants, fruits, and seeds. They also feed on food waste of humans.[7] They sometimes store leftovers on the ground and cover them with leaves for future retrieval. Sometimes they store food in the leaves or branches.[11]

Breeding

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The breeding season is from March to July.[7] The Taiwan blue magpie is monogamous. Females incubate eggs while males help with nest building and feeding. Their nests are built on high branches of trees. The nest is in the shape of a bowl and is made of twigs. Usually there are 3–8 eggs in a clutch. Eggs are light green in color, with brown marks.[7] Hatching takes 17–19 days. There are 3–7 chicks per nest. Chicks leave the nest after 21–24 days, and can start flying for short distances after a few days.[12] Some pairs breed a second time after this. The Taiwan blue magpie has helpers at the nest, mostly juveniles from previous breeding seasons. They help to feed the chicks and defend the nest. Taiwan blue magpies have a strong nest defence behaviour, and will attack intruders until they leave.[12]

Threats

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Taiwan blue magpies may be hit by cars or captured by humans. They are also killed by predators, such as the crested goshawk, white-bellied sea eagle, spot-bellied eagle owl and the Gurney's eagle.[13]

Relationship with humans

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Taiwan blue magpie is the sacred bird of Taiwan aborigine Tsou, Thao, and Bunun peoples. The sacred bird is called Teofsi'za in Tsou, Fitfit in Thao, and Haipis (Isbukun group) / Kaipis in Bunun. In the common great flood myths of Taiwan Austronesian peoples, in Tsou, Thao, and Bunun sagas, the last surviving peoples escaped from the great flood to high mountain summits as the last refuge. The sacred bird Taiwan blue magpie sacrificed itself and helped the peoples to carry the last fire tinder from Yu Shan summit back to the peoples.[14][15] (in some versions of the sagas, the sacred bird is considered to be black bulbul[a]).[17]: 183, 268 

Taiwan blue magpies have attacked humans to defend their nests.[12][18] Taiwan blue magpies are sometimes illegally captured by humans, but the number of cases of this seems to have decreased.[19]

In 2007, the Taiwan International Birding Associated held a vote to select the national bird of Taiwan. Participation was not limited to those in Taiwan, and there were over 1 million votes cast from 53 countries.[20] The Taiwan blue magpie defeated the Mikado pheasant, but the vote was not formally accepted.

In 2017 China Airlines unveiled a Taiwan blue magpie paint scheme on an Airbus A350. The aircraft was the 100th A350 produced by Airbus.[21]

The AIDC XAT-5 Blue Magpie advanced jet trainer is named after the Taiwan blue magpie.[22]

Status

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The IUCN Red List of Threatened Species has currently assessed the species to be of least concern as it does not meet the criteria to be vulnerable. The population trend is suspected to be stable.[1] Due to its endemism, however, the Taiwan blue magpie has been listed as other conservation-deserving wildlife (Chinese: 其他應予保育之野生動物)[23] and protected by Taiwan's Wildlife Conservation Act (Chinese: 野生動物保育法).

There is a small population of red-billed blue magpies that has been introduced to Wuling Farm in Taichung County (now part of Taichung City). In 2007, three hybrid chicks were found in a nest in Taichung, with red-billed and Taiwan magpie parents tending them. This caused some concern to conservationists, given the decline of the Taiwan hwamei due to the invasion of the Chinese hwamei. However, the Endemic Species Research Institute of Taiwan has been working to control red-billed magpie populations by capturing individual birds and relocating their nests.[24]

See also

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Notes

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  1. ^ The famous Japanese naturalist Dr. Kano Tadao (ja:鹿野忠雄), in his book of Taiwan alpinism records in his high school and college times "And Mountains, and Clouds, and Savages (Japanese: 山と雲と蕃人と)", in page 188 of the book, said the sacred bird in Bunun saga is '..."クロヒヨドリ", seems to be "Microscelis leucocephalus nigerrimus (Gould)"...'. Microscelis leucocephalus nigerrimus is Hypsipetes leucocephalus nigerrimus in modern taxonomy, or black bulbul; in Chinese translation version of the book (Hanzi: 山、雲與蕃人), Yang, Nan-jun (zh-TW:楊南郡), in page 183, 268 translator's notes, said some Bunun people's versions of sacred bird is Taiwan blue magpie.[16]: 187–188 [17]: 183, 268 

References

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  1. ^ a b BirdLife International (2018). "Urocissa caerulea". IUCN Red List of Threatened Species. 2018: e.T22705793A130380699. doi:10.2305/IUCN.UK.2018-2.RLTS.T22705793A130380699.en. Retrieved 19 November 2021.
  2. ^ Gill, F; D Donsker, eds. (2016). "Crows, mudnesters & birds-of-paradise". IOC World Bird List (version 6.3). Retrieved 18 August 2016.
  3. ^ Gould, John (1862). "Descriptions of Sixteen New Species of Birds from the Island of Formosa, collected by Robert Swinhoe, Esq., Her Majesty's Vice-Consul at Formosa". Proceedings of the Zoological Society of London. 1862: 282.
  4. ^ Swinhoe, Robert (October 1863). "The Ornithology of Formosa, or Taiwan". Ibis. 5 (4). British Ornithologists' Union: 384–386. doi:10.1111/j.1474-919X.1863.tb05739.x.
  5. ^ a b c "Taiwan Blue Magpie (Urocissa caerulea)". HBW Alive. Retrieved 15 August 2016.
  6. ^ a b Madge, Steve (2010). Crows and Jays. A&C Black. pp. 103–104. ISBN 978-1-40-813169-5.
  7. ^ a b c d e f "Urocissa caerulea Gould, 1863". eol.taibif.tw (in Chinese). Retrieved 11 August 2016.
  8. ^ "長尾山娘". The Society of Wilderness (in Chinese). Retrieved 23 August 2016.
  9. ^ "Formosan Magpie". Birding in Taiwan. Taiwan International Birding Association. Archived from the original on 14 October 2013. Retrieved 11 August 2016.
  10. ^ MacKinnon, John; Phillips, Karen (2000). A Field Guide to the Birds of China. Oxford: Oxford University Press. p. 264. ISBN 978-0-19-854940-6.
  11. ^ 台灣藍鵲的故事－食性 (in Chinese)
  12. ^ a b c Hsu, Ching Y.; Severinghaus, L. Liu. 陽明山國家公園內 台灣藍鵲合作生殖之研究 [Cooperative Breeding of Formosan Blue Magpie in Yang-Ming Shan National Park] (PDF). ymsnp.gov.tw (in Chinese). Retrieved 12 August 2016.
  13. ^ Hsu, Ching-Yen. "保育專題—台灣藍鵲" (PDF). 林務局 自然保育網 (in Chinese). Retrieved 27 August 2016.
  14. ^ Keyword 鄒族神鳥：臺灣藍鵲 [Keyword Tsou Sacred Bird: Taiwan Blue Magpie]. 國語時報 (in Chinese (Taiwan)). 2018-05-05. Archived from the original on 2018-05-05. Retrieved 2018-06-25.
  15. ^ [簡史朗] (Nov 2015). 逐鹿水沙連: 南投縣邵族口傳文學集 (in Chinese and Thao). Nantou, Taiwan: [南投縣文化局]. ISBN 9789860464986.
  16. ^ Kano Tadao [in Japanese] (Aug 1941). "11.附近蕃人との關係" 東郡大山塊の縱走. 山と雲と蕃人と [And Mountains, and Clouds, and Savages] (in Japanese). Tokyo: 中央公論社.
  17. ^ a b Kano Tadao [鹿野忠雄] (Feb 2000) [original in Aug 1941]. 山、雲與蕃人 [And Mountains, and Clouds, and Savages] (in Chinese (Taiwan)). Translated by Yang Nan-jun [in Chinese] (Chinese translation 1st ed.). Taipei: [玉山社]. ISBN 957-8246-33-1.
  18. ^ 邱惠恩 (29 May 2014). "台灣藍鵲警戒心高 是驅離、非攻擊". 台灣醒報 (in Chinese). Taipei. Retrieved 25 August 2016.
  19. ^ "Formosan Blue Magpie conservation efforts bear fruit". The China Post. Taipei, Taiwan. 3 January 2008. Retrieved 21 August 2016.
  20. ^ "Taiwan National Bird Vote Results". Birding In Taiwan. Taiwan International Birding Association. Retrieved 9 August 2016.
  21. ^ Bright, Craig. "China Airlines unveils second avian-themed A350 livery". businesstraveller.com. Business Traveler. Retrieved 11 May 2019.
  22. ^ J.R. Wu and Michael Perry, Damon Lin. "Taiwan to build 66 jet trainer aircraft by 2026 to bolster defenses". reuters.com. Reuters. Retrieved 9 May 2019.
  23. ^ "保育類野生動物名錄修正規定" (pdf). 林務局 自然保育網. Retrieved 14 August 2016.
  24. ^ "Blue Crisis". Construction and Planning Agency, Ministry of the Interior, R.O.C.(Taiwan). Retrieved 13 August 2016.
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