Scientific Name: Ixobrychus eurhythmus
Malay Name: Gelam Belakang Coklat
Chinese Name: 紫背苇鳽
Alternative Name(s): Chestnut Bittern, Schrenck's Bittern
Range: Found from Siberia, Korea, Japan to eastern China and winters in southern China and Southeast Asia
Size: 39-42 cm
Identification: Male has dark chestnut upperparts contrasting strongly with mostly buffish underparts and wing-coverts. Female and immature resembles Cinnamon Bittern but has darker and more prominently spotted upperparts (and wings, for adult).
Similar looking species: Cinnamon Bittern
Habitat: Freshwater marshes, forest streams, well-vegetated ponds and mangroves.
Behaviour/Ecology: Similar to other bitterns where it perches motionless for long periods before feeding.
Local Status: Rare migrant
Conservation Status: Least Concern (BirdLife International 2016)
Location: Central Catchment Forest, Lower Pierce Reservoir, Tuas South, Pasir Ris Park, Sungei Buloh and Satay by the Bay.
Migrant bar chart (see more bar charts):
Von Schrenck's Bittern Ixobrychus eurhythmus Estimated average number of individuals by week based on eBird data, Jul 2013 to Jun 2023
BirdLife International. (2016). Ixobrychus eurhythmus. The IUCN Red List of Threatened Species 2016. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22697317A93607859.en. Accessed on 1 January 2023
Jeyarajasingam, A., & Pearson, A. (2012). A Field Guide to the Birds of Peninsular Malaysia and Singapore. Oxford University Press.
Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.
Bird Society of Singapore. (n.d.). Von Schrenck's Bittern. Retrieved on December 5, 2023 from https://singaporebirds.com/species/von-schrencks-bittern.