Brunei Darussalam (B), Indonesia (B), Malaysia (B), Myanmar (B), Thailand (B).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 2,500 - 9,999 (2011) and decreasing.
Status VU
Habitat loss, degradation and fragmentation due to large-scale commercial logging and widespread forest clearance for plantation agriculture are the main threats.
For more information see BirdLife International Species Factsheet.
Voice
A shrill, high-pitched 'yik-yee' or 'kliit-kleeik', with rising second note. Fledged juveniles give high-pitched, breathless 'yii-yii-yii-yii and ee-ee-ee-ee-eeee'.
Wallace's Hawk-Eagle (Nisaetus nanus) [XC294041]
by Qin Huang from Rainforest Discovery Center, Forest Trail, Sepilok, Sandakan, Sabah, Malaysia (call)
Wallace's Hawk-Eagle (Nisaetus nanus) [XC359908]
by id from Rainforest Discovery Center, Sepilok, Sabah, Borneo, Malaysia (call)
Subspecies
Spizaetus nanus, Spizaetus lanceolatus, Spizaetus philippensis, Spizaetus pinskeri, Spizaetus nipalensis, Spizaetus alboniger and Spizaetus bartelsi (Sibley and Monroe 1990, 1993) and Spizaetus cirrhatus and Spizaetus floris (Gjershaug et al. 2004) have been transferred into the genus Nisaetus following Haring et al. (2006). Spizaetus africanus and Hieraaetus fasciatus (Sibley and Monroe 1990, 1993) have both been transferred into Aquila, also following Haring et al. (2006); and Hieraaetus kienerii (Sibley and Monroe 1990, 1993) has been transferred into the resurrected genus Lophotriorchis.
Long considered synonymous with Blyth's Hawk-Eagle (Nisaetus alboniger), due to confusion with immature plumages of latter.
The following 2 subspecies are recognised:
nanus (Wallace, 1868) - Southern Burma (Tennaserrim) and southern Thailand through Malay Peninsula to Sumatra and Borneo.
stresemanni (Amadon, 1953) - Nias I (off western Sumatra).
Similar Species
Blyth's Hawk-Eagle (Nisaetus alboniger) which is larger, has narowly white-tipped crest, blackish tail with pale grey broad, central band and narrow tip. Whitish underwing with heavy black barring on coverts and dark sides of head.
References
See References.
BirdLife International Species Factsheet