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Black-necked crane sighted in Assam

  • Category
    Environment
  • Published
    1st Mar, 2021

Context

Black-necked cranes (Grus nigricollis) native to the Tibetan plateau have been sighted for the first time in Assam.

About

What are Black-necked cranes?

  • Black-necked cranes are iconic birds of the Tibetan Plateau, and are integral to the landscape’s biophysical ecosystem.
  • They are of great spiritual and cultural significance to Tibetan Buddhism.
  • The Monpa community (major Buddhist ethnic group of Arunachal Pradesh) in particular holds black-necked cranes in high stature because the sixth Dalai Lama, Gyalwa Tsangyang Gyatso, born in Tawang, had paid it glowing tributes in the 17th century.
    • Monpas inhabit the West Kameng and Tawang districts.
    • They are essentially Buddhists who follow the Mahayana sect.
  • These medium-sized alpine cranes, weighing about 5 kg each and standing about 115 cm tall, have a patch of red on their crowns, grey bodies and a characteristic black-neck.
  • Habitat: Meadows are their favoured habitat, where they can feed on roots, insects, snails, fish, frogs, small birds and rodents.
    • They breed exclusively in alpine meadows, at altitudes of 2,600 to 4,900 m, and as a protection from predators nest in marshes where the water is about 30 cm deep.

The world's only alpine crane species

  • The black-necked crane is endemic to China's Tibetan Plateau.
  • In summer, the black-necked cranes are mainly found in altitudes between 3,000 and 5,000 meters.
  • The migration of the black-necked cranes starts in September via sheltered valleys or lower altitudes.
  • About two thirds of the birds spend the winter in the valleys of Yarlung Tsangpo River and south-central Tibet Autonomous Region.
  • The remaining population winter in Yunnan and Guizhou Provinces, and a small number are known to winter in Bhutan and

Conservation status

  • These birds are threatened by human- and climate-change-induced habitat loss, and of late also by free-ranging dogs in their breeding areas and food shortage in wintering areas.
  • It is now listed in Schedule I of Wildlife (Protection) Act 1972.
  • In 2020, a re-assessment of the crane’s population led its status to change from Vulnerable to Near Threatened on the IUCN Red List.
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