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

Taxonomic source(s)
Clark, W.S. 1999. Plumage differences and taxonomic status of three similar Circaetus snake-eagles. Bulletin of the British Ornithologists' Club 119: 56-59.
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
-	-	A2bcd+3bcd+4bcd; C2a(ii)

Red List history

Year	Category	Criteria
2021	Vulnerable	A2bcd+3bcd+4bcd
2018	Vulnerable	A2bcd+3bcd+4bcd; C1+2a(ii)
2016	Vulnerable	A2bcd+3bcd; C1+2a(ii)
2014	Vulnerable	A2bcd+3bcd+4bcd;C1+2a(ii)
2012	Vulnerable	A2bcd+3bcd+4bcd;C1+2a(ii)
2008	Vulnerable	A2b,c,d; A3b,c,d; A4b,c,d; C1; C2a(ii)
2007	Vulnerable
2006	Not Evaluated
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Migratory status	nomadic	Forest dependency	low
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	8,000,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	poor	suspected	2007
Population trend	decreasing	good	inferred	1998-2025
Rate of change over the past 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Generation length	9 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: It occurs at low densities and survey data suggest there are a minimum of 1,000 individuals (J. M. Thiollay in litt. 2006), but in the context of the species' large range, the population is suspected to fall in the range of 2,500-9,999 mature individuals.

Trend justification: Thiollay (2006a) estimates that this species declined globally by 86-93% between 1969-1973 and 2004. Declines are conservatively suspected here to have taken place at a rate of 30-49% in three generations (27 years), but may prove to have been higher.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Benin	extant	vagrant
Burkina Faso	extant	native	yes
Cameroon	extant	native	yes
Central African Republic	extant	native	yes
Chad	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Côte d'Ivoire	extant	native	yes
Gambia	extant	native	yes
Ghana	extant	native	yes
Guinea	extant	native	yes
Kenya	extant	native	yes
Mali	extant	native	yes
Mauritania	extant	native	yes
Niger	extant	native	yes
Nigeria	extant	native	yes
Senegal	extant	native	yes
South Sudan	extant	native	yes
Sudan	extant	native	yes
Uganda	extant	native	yes

Country/Territory	IBA Name
Niger	Diffa-Kinzindi grassland and wetlands

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Dry	suitable	resident
Grassland	Subtropical/Tropical Dry	suitable	resident
Savanna	Dry	suitable	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Altitude	0 - 2000 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation
Pollution	Agricultural & forestry effluents - Herbicides and pesticides	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Reduced reproductive success
Residential & commercial development	Housing & urban areas	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Beaudouin's Snake-eagle Circaetus beaudouini. Downloaded from https://datazone.birdlife.org/species/factsheet/beaudouins-snake-eagle-circaetus-beaudouini on 23/11/2024.
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 23/11/2024.