The Schrenck's Bittern, Ixobrychus eurhythmus 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 record from Italy as far back as 1912. It is named after Leopold Schrenk,the nineteenth century Russian naturalist.

This is a small species at 38cm 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 reedbeds. They can be difficult to see, given their skulking lifestyle and reedbed 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, the Schrenck's Bittern is evaluated as Least Concern on the IUCN Red List of Threatened Species.