Scientific Name: Circus spilonotus
Malay Name: Helang-Sawah Biasa
Chinese Name: 白腹鹞
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
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.
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link
eBird Species page: eBird (Eastern Marsh-Harrier)
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 19 December 2021
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.