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, Changeable Hawk-Eagle, Eastern Buzzard, Common 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.

Featured reports: Mar 2022, Nov 2022, Dec 2022, Jan 2023, Feb 2023, Mar 2023, Apr 2023

Migrant bar chart (see more bar charts):

Jerdon's Baza Aviceda jerdoni
Estimated average number of individuals by week based on eBird data, Jul 2013 to Jun 2023
Peak week Dec 10-Dec 16
Early date 01 Nov 2020
Late date 02 Apr 2023
Just like the other baza in Singapore, a late migrant to our shores. Several birds have been spending their winter here, mainly in the northeast of the island.
Jerdon’s Baza at Bishan Park. Photo credit: Francis Yap
Jerdon’s Baza at Lorong Halus. Photo Credit: Francis Yap
Jerdon’s Baza at Changi. Photo Credit: Con Foley
Jerdon’s Baza at Bishan Park. Photo credit: Francis Yap
Jerdon’s Baza at Lorong Halus. Photo Credit: Francis Yap
Jerdon’s Baza at Jelutong Tower. Photo credit: Francis Yap
Jerdon’s Baza at Bishan Park. Photo credit: Francis Yap

External Links:

Conservation Status: IUCN Red List Page

Sound Recordings: xeno-canto Link

Wikipedia Entry: Wikipedia Link

eBird Species page: eBird (Jerdon's Baza)

References:

BirdLife International. (2020). Aviceda jerdoni. The IUCN Red List of Threatened Species 2020. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T22694956A181759887.en. Accessed on 1 January 2023

Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.

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

RECOMMENDED CITATION

Bird Society of Singapore. (n.d.). Jerdon's Baza. Retrieved on October 1, 2023 from https://singaporebirds.com/species/jerdons-baza.

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