Nisaetus nipalensis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Nisaetus nipalensis
Species Authority: Hodgson, 1836
Common Name(s):
English Mountain Hawk-eagle, Mountain Hawk-Eagle
Taxonomic Notes: Nisaetus nipalensis was split into N. nipalensis and N. kelaarti by Gjershaug et al. (2008), but this treatment is not followed by the BirdLife Taxonomic Working Group (Nov. 2008), because the authors present comparisons involving small samples that include contradictory ageing of the specimens in question, invalidating conclusions drawn about taxonomic differences that may merely be an artefact of different age classes. The BirdLife Taxonomic Working Group feel that, before a considered decision on a change in the taxonomic status of kelaarti can be made, a far larger sample size of same-age and same-sex specimens of the two taxa needs to be examined for mensural and plumage differences, that extensive tape-recordings should be systematically assembled and analysed, and that broad photographic evidence could also usefully be assembled for comparisons. Spizaetus nanus, S. lanceolatus, S. philippensis, S. pinskeri, S. nipalensis, S. alboniger and S. bartelsi (Sibley and Monroe 1990, 1993) and S. cirrhatus and S. floris (Gjershaug et al. 2004) have been transferred into the genus Nisaetus following Haring et al. (2006). S. africanus and Hieraaetus fasciatus (Sibley and Monroe 1990, 1993) have both been transferred into Aquila, also following Haring et al. (2006); and H. kienerii (Sibley and Monroe 1990, 1993) has been transferred into the resurrected genus Lophotriorchis. The BirdLife Taxonomic Working Group is aware that phylogenetic analyses have been published which have proposed moving H. pennatus into Aquila but as not all published studies are concordant we prefer not to take a decision on this until cladogenesis of the 'booted eagles' has been resolved.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Ekstrom, J., Butchart, S., Harding, M.
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 moderately small to large, 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.

Geographic Range [top]

Bhutan; Cambodia; China; India; Japan; Lao People's Democratic Republic; Myanmar; Nepal; Pakistan; Russian Federation; Sri Lanka; Taiwan, Province of China; Thailand; Viet Nam
Hong Kong; Korea, Republic of; Mongolia
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Systems: Terrestrial

Citation: BirdLife International 2012. Nisaetus nipalensis. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 29 March 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided