Congo Serpent-eagle (Dryotriorchis spectabilis)

Congo Serpent-eagle Dryotriorchis spectabilis

Current view: Data table and detailed info

Taxonomy

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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
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

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	5,670,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	poor	estimated	2009
Population trend	decreasing	-	suspected	-
Generation length	12.9 years	-	-	-

Trend justification: The population is declining locally owing to habitat loss through deforestation (Ferguson-Lees and Christie 2001).

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Angola	extant	native	yes
Cameroon	extant	native	yes
Central African Republic	extant	native	yes
Congo	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Côte d'Ivoire	extant	native	yes
Equatorial Guinea	extant	native	yes
Gabon	extant	native	yes
Ghana	extant	native	yes
Guinea	extant	native	yes
Liberia	extant	native	yes
Nigeria	extant	native	yes
Sierra Leone	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Angola	Camabatela
Angola	Luachimo River (Chitato)
Congo, The Democratic Republic of the	Luki Forest Reserve
Congo, The Democratic Republic of the	Ngiri
Congo, The Democratic Republic of the	Salonga National Park
Congo, The Democratic Republic of the	Lomako - Yekokora
Congo, The Democratic Republic of the	Mount Hoyo Reserve
Congo, The Democratic Republic of the	Okapi Faunal Reserve
Congo, The Democratic Republic of the	Virunga National Park
Congo, The Democratic Republic of the	Maiko National Park
Congo, The Democratic Republic of the	Forests west of Lake Edward
Congo, The Democratic Republic of the	Kahuzi-Biega National Park
Congo, The Democratic Republic of the	Itombwe Mountains
Central African Republic	Dzanga-Ndoki National Park
Congo	Nouabalé-Ndoki National Park complex
Congo	Odzala National Park complex
Congo	Dimonika Biosphere Reserve
Congo	Lower Kouilou basin
Congo	Conkouati National Park
Côte d'Ivoire	Peko Mountain National Park
Côte d'Ivoire	Parc National de Taï et Réserve de faune du N'Zo
Côte d'Ivoire	Mopri Forest Reserve
Côte d'Ivoire	Yapo and Mambo Forest Reserves
Cameroon	Banyang Mbo Wildlife Sanctuary
Cameroon	Korup National Park
Cameroon	Mont Manengouba
Cameroon	Bakossi mountains
Cameroon	Mont Nlonako
Cameroon	Mount Kupe
Cameroon	Yabassi
Cameroon	Mount Cameroon and Mokoko-Onge
Cameroon	Mbam Minkom - Kala
Cameroon	Dja Faunal Reserve
Cameroon	Boumba - Bek
Cameroon	Nki
Cameroon	Lobéké National Park
Gabon	Gamba Protected Areas Complex
Gabon	Lopé Faunal Reserve
Gabon	Ipassa Strict Nature Reserve
Gabon	Minkébé Forest Reserve
Guinea	Massif du Ziama
Equatorial Guinea	Monte Alen National Park
Liberia	Wologizi mountains
Liberia	Lofa-Gola-Mano Complex
Liberia	Nimba mountains
Liberia	Zwedru
Liberia	Grebo
Nigeria	Cross River National Park (Okwangwo Division) and Mbe Mountains
Nigeria	Upper Orashi forests
Nigeria	Biseni forests
Nigeria	Ebok-Kabaken
Sierra Leone	Gola Forests
Congo	Lake Télé Community Reserve
Ghana	Kalakpa Resource Reserve
Ghana	Kyabobo National Park

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2023) Species factsheet: Dryotriorchis spectabilis. Downloaded from http://datazone.birdlife.org/species/factsheet/congo-serpent-eagle-dryotriorchis-spectabilis on 10/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 10/12/2023.