Family Hawks, Eagles (Accipitridae)

Least Concern

Blyth's Hawk-eagle (Nisaetus alboniger)


Taxonomy

French: Aigle de Blyth German: Trauerhaubenadler Spanish: Águila indonesia
Taxonomy:

Nisaëtus alboniger

Blyth

, 1845,

Malacca, Malay Peninsula

.

Traditionally thought to form a species-group with N. nipalensis, N. bartelsi, N. lanceolatus and N. philippensis (with N. pinskeri). N. nanus was long considered synonymous with alboniger (which see). Monotypic.

Distribution:

S Thailand through Malay Peninsula to Sumatra and satellite islands (Simeulue, Nias, Mentawai Is, Belitung); N & C Borneo.

Descriptive notes

50–58 cm; 830 g; wingspan 100–115 cm. Smallish to medium-sized hawk-eagle with fairly long crest, but blacker above than most congeners. Throat white with dark... read more

Voice

Generally silent, except in the breeding season. Commonest call is a repeated, single piercing... read more

Habitat

Preferred habitat primary montane evergreen forest from 500–1500 m; occasionally occurs down... read more

Food and feeding

Little information. Arboreal mammals, bats, birds, lizards; also reported to take domestic fowl. Captures prey in trees after agile flight... read more

Breeding

Very little information. Nest on Malay Peninsula had incubating bird in Nov and single chick from late Dec–late Apr; in Sumatra, pair... read more

Movements

Adults presumed to be sedentary; juveniles may pass through lowland open habitats during dispersal. read more

Status and conservation

Not globally threatened (Least Concern). CITES II. Generally appears to be uncommon, but no information on global numbers or population trends. Suspected to be in decline... read more

Recommended citation

Clark, W.S., Boesman, P. & Marks, J.S. (2018). Blyth's Hawk-eagle (Nisaetus alboniger). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53177 on 17 November 2018).