• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	3,320,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	poor	estimated	2009
Population trend	decreasing	-	suspected	-
Generation length	7.9 years	-	-	-

Population justification: This species is considered to have a high dependency on forest habitat, and tree cover is estimated to have declined by 15.6% within its mapped range over the past three generations (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). It is therefore tentatively suspected that this rate of cover loss may have led to a decline of between 1-19% in the species' population size over the same time frame, with a best estimate of reduction being 15-19%.

Trend justification:   .

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Brunei	extant	native	yes
Indonesia	extant	native	yes
Laos	extant	native	yes
Malaysia	extant	native	yes
Singapore	extant	native	yes
Thailand	extant	native	yes

Country/Territory	IBA Name
Malaysia	Bau Limestone
Malaysia	Belum-Temenggor
Malaysia	Bintang Range
Malaysia	Central Titiwangsa Range
Malaysia	Danum Valley Conservation Area
Malaysia	Endau-Rompin
Malaysia	Gunung Penrissen
Malaysia	Gunung Pueh
Malaysia	Kabili-Sepilok
Malaysia	Kledang Range
Malaysia	Krau Wildlife Reserve
Malaysia	Lambir Hills National Park
Malaysia	Lanjak Entimau Wildlife Sanctuary
Malaysia	Maliau Basin Conservation Area
Malaysia	Mount Kinabalu
Malaysia	Mulu - Buda Protected Area
Malaysia	Nakawan Range
Malaysia	Niah National Park
Malaysia	Panti forest
Malaysia	Selangor Heritage Park
Malaysia	Tabin Wildlife Reserve
Malaysia	Taman Negara National Park
Malaysia	Tanjung Datu-Samunsam Protected Area
Malaysia	Trus Madi Range
Malaysia	Ulu Muda
Thailand	Bala Sector, Hala-Bala Wildlife Sanctuary
Thailand	Bu Do - Sungai Padi
Thailand	Chaloem Pra Kiet (Pa Phru to Daeng)
Thailand	Hala Sector, Hala-Bala Wildlife Sanctuary and Bang Lang National Park
Thailand	Khao Nor Chuchi
Thailand	Thaleban

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	suitable	resident
Altitude	20 - 2910 m	Occasional altitudinal limits

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Blyth's Hawk-eagle Nisaetus alboniger. Downloaded from https://datazone.birdlife.org/species/factsheet/blyths-hawk-eagle-nisaetus-alboniger on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/11/2024.