Jerdon’s Baza

Scientific Name: Aviceda jerdoni
Malay Name: Helang-Gerigi Perang
Chinese Name: 褐冠鹃隼

Range:
Breeds in scattered locations across India, Nepal, continental southeast Asia, Sumatra, Borneo, Philippines and Sulawesi. Some populations from the north migrate south through Thailand, Malaysia and Singapore.

Taxonomy:
Polytypic. Subspecies are: jerdoni, ceylonensis, borneensis, magnirostris, celebensis.

Local Subspecies: jerdoni

Size: 46 cm

Identification:
Pale brown underparts with dense dark brown barring, darker brown upperparts, with distinct crest typically seen when perched. Underwing coverts strongly marked dark brown. Combination of plumage features and distinct paddle-like wing shape rules out all other species locally.

Similar looking species: Crested Honey Buzzard, Common Buzzard, Changeable Hawk-Eagle, Eastern Buzzard

Habitat: Woodland.

Behaviour/Ecology: Much less common than the congeneric Black Baza, but the small numbers that winter in Singapore tend to form groups as well.

Local Status: Uncommon migrant

Conservation Status: Least Concern (BirdLife International 2020)

Location: Observed migrating across key raptor watch sites. Small numbers have been observed wintering around Lorong Halus semi-regularly.

Photos:

External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link

References:
BirdLife International. (2020). Aviceda jerdoni. The IUCN Red List of Threatened Species 2020. Downloaded on 2 September 2021
Robson, C. (2008). A Field Guide to the Birds of South-East Asia. New Holland Publishers.
Clark, W.S. & Kirwan, G. M. (2020). Jerdon's Baza (Aviceda jerdoni), version 1.0. In del Hoyo, J., Elliott, A., Sargatal, J., Christie, D. A., & de Juana, E. (Eds). Birds of the World. Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.jerbaz1.01