The crested ibis (''Nipponia nippon''), also known as the Japanese crested ibis, Asian crested ibis or toki, is a large (up to long), white-plumaged
ibis
The ibises () (collective plural ibis; classical plurals ibides and ibes) are a group of long-legged wading birds in the family Threskiornithidae, that inhabit wetlands, forests and plains. "Ibis" derives from the Latin and Ancient Greek word f ...
of
pine
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family (biology), family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanic ...
forests, native to eastern Asia. Its head is partially bare, showing red skin, and it has a dense crest of white plumes on the
nape. It is the
only member of the
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
''Nipponia''.
Breeding
They make their
nests at the tops of trees on
hill
A hill is a landform that extends above the surrounding terrain. It often has a distinct summit.
Terminology
The distinction between a hill and a mountain is unclear and largely subjective, but a hill is universally considered to be not as ...
s usually overlooking their habitat.
Diet
Crested ibises usually eat insects, frogs, small fish, and small animals.
Distribution
At one time, the crested ibis nested in the
Russian Far East
The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is admin ...
,
Japan, and
Mainland China
"Mainland China" is a geopolitical term defined as the territory governed by the People's Republic of China (including islands like Hainan or Chongming), excluding dependent territories of the PRC, and other territories within Greater Chin ...
, and was a non-breeding visitor to the
Korean Peninsula
Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic ...
and
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northe ...
. It has now disappeared from most of its former range, and the only natural (non-reintroduced) population occurs in
Shaanxi,
China.
Conservation
The last wild crested ibis in Japan died in October 2003, with the remaining wild population found only in
Shaanxi Province of China, until the reintroduction of captive bred birds back into Japan in 2008. They were previously thought to be extinct in China as well, until their rediscovery in 1981.
Extensive
captive breeding programs have been developed by Japan and China to conserve the species. They are on China's State Protection List. In 2002, there were a total of 130 colonies in China. Northwest Shaanxi province's research center has a history of 26 crested ibis fledglings including artificial and natural incubation. On July 31, 2002, five out of seven crested ibis chicks hatched at an incubation center in northwest Shaanxi province. This was the highest ever recorded number of chicks that hatched.
[ The parents of the chicks were chosen from 60 ibis pairs raised at that research center.][
]
In 1980s, each birds were decimated by overhunting
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource, as it will be unable to replenish. The term app ...
, uses of pesticides, ongoing habitat loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...
, small population size, limited range, winter starvation
Starvation is a severe deficiency in caloric energy intake, below the level needed to maintain an organism's life. It is the most extreme form of malnutrition. In humans, prolonged starvation can cause permanent organ damage and eventually, dea ...
and persecution brought the endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
species to the brink of extinction
Extinction is the termination of a kind of organism or of a group of kinds ( taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed ...
. The crested ibis has been listed in Appendix I of the conservation treaty CITES.
The London Zoo had crested ibises from 1872 until 1873. Outside China, only Japan and South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
currently keep the species.
Reintroductions
Japan
On September 25, 2008 in Sado, Niigata, the Sado Japanese Crested Ibis Preservation Center released 10 of the birds as part of its crested ibis restoration program, which aimed to introduce 60 ibises into the wild by 2015. It was the first time the bird has returned to the Japanese wild since 1981.[
On April 23, 2012, it was confirmed that three crested ibis chicks had hatched on Sado Island in ]Niigata Prefecture
is a prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,227,496 (1 July 2019) and is the fifth-largest prefecture of Japan by geographic area at . Niigata Prefecture borders Toyama Prefecture and N ...
, the first time chicks had hatched in the wild in Japan in 36 years.[
On June 23, 2022, nearly five hundred tokis returned to Sado, where the bird's delicate pink plumage and distinctive curved beak now draw ]tourists
Tourism is travel for pleasure or business; also the theory and practice of touring (disambiguation), touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tour (disambiguation), tours. Th ...
. It's a rare conservation success story when one in eight bird species globally are threatened with extinction, and involved international diplomacy and an agricultural revolution on a small island off Japan's west coast.
South Korea
On the Korean Peninsula, the bird has not been present since it was last seen in 1979 near the Korean Demilitarized Zone (DMZ). South Korea made efforts to restore the species after former Chinese President Hu Jintao
Hu Jintao (born 21 December 1942) is a Chinese politician who served as the 16–17th general secretary of the Chinese Communist Party (CCP) from 2002 to 2012, the 6th president of the People's Republic of China (PRC) from 2003 to 2013, an ...
delivered a pair of the birds as a present during a South Korea–China summit in 2008, and President Xi Jinping
Xi Jinping ( ; ; ; born 15 June 1953) is a Chinese politician who has served as the general secretary of the Chinese Communist Party (CCP) and chairman of the Central Military Commission (CMC), and thus as the paramount leader of China, ...
presented another pair in 2013. The restoration center in Changnyeong has bred more than 360 crested ibises so far. The South Korean government has released dozens of crested ibises into the wild to promote its efforts to preserve biological diversity.
See also
* – the crested ibis is listed
References
External links
*
Japanese crested ibis at www.biodic.go.jp
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{{Authority control
crested ibis
Birds of China
Birds of Japan
Birds of Korea
crested ibis