LC
Congo Serpent-eagle Dryotriorchis spectabilis



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 Breeding visitor Non-breeding visitor Passage migrant
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.