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Birds of Thailand

Species of Thailand

Von schrenck's bittern

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

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)

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

Range map of Ixobrychus eurhythmus in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

It is free to use this map on various media. See the creative common license terms by clicking "CC" icon below the map. But remember, again; the map may not be accurate or complete.

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