Scientific Name: Lophotriorchis kienerii
Malay Name: Helang Perut Merah
Chinese Name: 棕腹隼雕
Range:
Found from India to Sri Lanka, Hainan Island and Southeast Asia.
Taxonomy:
Polytypic. Subspecies are: kienerii, formosus.
Local Subspecies: formosus
Size: 53-61 cm
Identification:
Adult has slight crest, blackish head-sides/upperparts, whitish throat/upperbreast and rufous-chestnut belly/vent. In flight shows mostly rufous-chestnut wing-coverts. Juvenile has browner upperparts, whitish head-sides with blackish eyeline and mostly whitish underparts/wing coverts.
Similar looking species: Changeable Hawk-Eagle, Western Osprey
Habitat: Forest, forest edge, secondary growth and suitable wooded areas.
Behaviour/Ecology: Usually glides and soars with wings held level.
Local Status: Rare migrant
Conservation Status: Near Threatened (BirdLife International 2020)
Past accepted records in our database: (not a complete listing)

Photos:
External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link
eBird Species page: eBird (Rufous-bellied Eagle)
References:
BirdLife International. (2020). Lophotriorchis kienerii. The IUCN Red List of Threatened Species 2020. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T22696111A176625288.en. Accessed on 19 December 2021
Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.