Justification of Red List Category
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be small, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
The population is estimated to number 10,000 individuals (Chia 2011), roughly equating to 6,700 mature individuals.
The population is suspected to be in decline owing to ongoing habitat destruction (Ferguson-Lees and Christie 2001).
Clearance of primary forest poses a threat (Ferguson-Lees and Christie 2001). Hunting in Mizoram, India has also been identified as a potential threat (Ved and John 2011). Crested Serpent-eagle Spilornis cheela and Scarlet Minivet Pericrocotus flammeus have been observed predating and attacking juvenile and adult Jerdon's Baza respectively, in Kerala, India (Vishnudas 2007).
Text account compilers
Ashpole, J, Butchart, S., Ekstrom, J. & Harding, M.
BirdLife International (2022) Species factsheet: Aviceda jerdoni. Downloaded from http://www.birdlife.org on 17/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 17/08/2022.