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Great Knot

  • November 21, 2022
  • Posted by: OptimizeIAS Team
  • Category: DPN Topics
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Great Knot

Subject : Environment

Context : A great knot from Russia, has found its way to Kerala’s coast, flying over 9,000 km for a winter sojourn. Recently many juvenile great knots have been tagged with MOSKVA rings in the Kamchatka peninsula in eastern Russia.

Concept : 

About Great Knot:

  • The Great Knot is an international migratory wading bird that travels vast distances between the northern hemisphere breeding grounds and southern hemisphere summer feeding grounds.
  • The Great Knot is a medium-sized shorebird with a straight, slender bill of medium length and a heavily streaked head and neck.
  • IUCN Red List of Threatened Species: Endangered
  • Scientific name: Calidris tenuirostris
  • Species author: (Horsfield, 1821)

Distribution:

  • Great Knots occur around coastal areas in many parts of Australia during the southern summer.
  • They breed in eastern Siberia, and when on migration they occur throughout coastal regions of eastern and South East Asia.

Habitat:

  • In Australia, Great Knots inhabit intertidal mudflats and sandflats in sheltered coasts, including bays harbours and estuaries.
  • They forage on the moist mud, and they often roost on beaches or in nearby low vegetation, such as mangroves or dune vegetation.

Wading birds

  • Waders are tiny and long-legged birds commonly found along shorelines and mudflats.
  • Wader birds are members of the order of Ciconiiformes and are distinguished by their long legs.
  • Wading birds have developed physical and behavioral adaptations that enable them to survive in close proximity to or on water.
  • In addition to drinking water, wading birds rely on water for food, shelter, and breeding sites.
  • Among the birds in the group are cranes, herons, egrets, storks, spoonbills, and ibises.
Environment Great Knot

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