Scientific Name: Circus spilonotus
Malay Name: Helang-Sawah Biasa
Chinese Name: 白腹鹞
Range: Found from eastern Siberia, north-eastern China to northern Japan and winters to the Indian subcontinent, southern China, southern Japan, Korea and Southeast Asia
Size: 48-56 cm
Identification: Male resembles Pied Harrier but has black streaks on neck and breast and lacks large white patches on upperwing-coverts. Female resembles Pied Harrier but has dull rufous belly and thigh. Juvenile also resembles Pied Harrier but has darker brown body and pale head.
Similar looking species: Pied Harrier
Habitat: Open country, reclaimed land, grasslands and marshes.
Behaviour/Ecology: Usually flies low over open country with short flaps interspersed by long glides.
Local Status: Uncommon migrant
Conservation Status: Least Concern (BirdLife International 2021)
Location: Recent sightings were at Changi reclaimed land, Tanah Merah grassland, Kranji Marsh and Henderson Waves Bridge.
- Bird List Revision for May 2019 (Revisions)
- RAP301: What is that raptor? (ID Articles)
- Singapore Birds Project Raptor Watch at Henderson Waves (Blog)
Migrant bar chart (see more bar charts):
Eastern Marsh Harrier Circus spilonotus Estimated average number of individuals by week based on eBird data, Jul 2013 to Jun 2023
BirdLife International. (2021). Circus spilonotus. The IUCN Red List of Threatened Species 2021. https://dx.doi.org/10.2305/IUCN.UK.2021-3.RLTS.T61709141A203625947.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.). Eastern Marsh Harrier. Retrieved on November 30, 2023 from https://singaporebirds.com/species/eastern-marsh-harrier.