Thai National Parks

Birds of Thailand

Species of Thailand

Von schrenck's bittern

In Thai: นกยางไฟหัวเทา, nok yaang fai hua thao

Binomial name: Ixobrychus eurhythmus, Robert Swinhoe, 1873

Von Schrenck's bittern (Ixobrychus eurhythmus), also known as Schrenck's bittern, is a small bittern. It breeds in China and Siberia from March to July, and Japan from May to August. It winters in Indonesia, Philippines, Singapore, Laos, passing through the rest of South-east Asia. It is an exceptionally rare vagrant as far west as Europe, with a single sighting in Italy in 1912. It is named after Leopold von Schrenck, the 19th-century Russian naturalist.

This is a small species at 33 to 38 cm in length, with a short neck, longish yellow bill and yellow legs. The male is uniformly chestnut above, and buff below and on the wing coverts. The female and juvenile are chestnut all over with white speckles above, and white streaks below. When in flight, it shows black flight feathers and tail.

Their breeding habitat is reed beds. They can be difficult to see, given their skulking lifestyle and reed bed habitat, but tend to emerge at dusk, when they can be seen creeping almost cat-like in search of preys.

Widespread throughout its large range, Von Schrenck's bittern is evaluated as Least Concern on the IUCN Red List of Threatened Species.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Pelecaniformes
Family
Ardeidae
Genus
Ixobrychus
Species
Ixobrychus eurhythmus

Common names

  • English:
    • Schrenck's bittern
    • Schrenck's little bittern
    • Von Schrenck's bittern
  • Thai: นกยางไฟหัวเทา, nok yaang fai hua thao

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Range Map

Distribution map of Von schrenck's bittern, Ixobrychus eurhythmus in Thailand
Range map of Ixobrychus eurhythmus in Thailand