LC
Olive Long-tailed Cuckoo Cercococcyx olivinus



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 Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 5,200,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.2 - - -

Population justification: The global population size has not been quantified, but the species is reported to be uncommon in Nigeria (del Hoyo et al. 1997).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Cameroon N Extant Yes
Central African Republic N Extant Yes
Congo N Extant Yes
Congo, The Democratic Republic of the N Extant Yes
Côte d'Ivoire N Extant Yes
Equatorial Guinea N Extant Yes
Gabon N Extant Yes
Ghana N Extant Yes
Guinea N Extant Yes
Liberia N Extant Yes
Nigeria N Extant Yes
Sierra Leone N Extant Yes
Uganda N Extant Yes
Zambia N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Angola Camabatela
Cameroon Bakossi mountains
Cameroon Campo Ma'an complex
Cameroon Dja Faunal Reserve
Cameroon Korup National Park
Cameroon Lobéké National Park
Cameroon Mbam Djerem National Park
Cameroon Mont Manengouba
Cameroon Mont Nlonako
Cameroon Mount Cameroon and Mokoko-Onge
Cameroon Mount Kupe
Cameroon Mount Rata and Rumpi Hills Forest Reserve
Cameroon Nki
Central African Republic Dzanga-Ndoki National Park
Central African Republic Ngotto
Congo Conkouati National Park
Congo Dimonika Biosphere Reserve
Congo Lake Télé Community Reserve
Congo Léfini Faunal Reserve
Congo Lower Kouilou basin
Congo Nouabalé-Ndoki National Park complex
Congo Odzala National Park complex
Congo Ogooué Leketi National Park
Congo, The Democratic Republic of the Itombwe Mountains
Congo, The Democratic Republic of the Lomako - Yekokora
Congo, The Democratic Republic of the Ngiri
Congo, The Democratic Republic of the Okapi Faunal Reserve
Congo, The Democratic Republic of the Salonga National Park
Côte d'Ivoire Bossematie Forest Reserve
Côte d'Ivoire Gueoule and Glo Mountain Forest Reserves
Côte d'Ivoire Marahoue National Park
Côte d'Ivoire Mopri Forest Reserve
Côte d'Ivoire Mount Nimba Strict Nature Reserve
Côte d'Ivoire Parc National de Taï et Réserve de faune du N'Zo
Côte d'Ivoire Peko Mountain National Park
Côte d'Ivoire Yapo and Mambo Forest Reserves
Equatorial Guinea Monte Alen National Park
Gabon Ipassa Strict Nature Reserve
Gabon Léconi grasslands
Gabon Lopé Faunal Reserve
Gabon Minkébé Forest Reserve
Ghana Atewa Range Forest Reserve
Ghana Bosomtwe Range Forest Reserve
Ghana Nsuensa Forest Reserve
Ghana Pra-Sushien Forest Reserve
Ghana Tano-Anwia Forest Reserve
Ghana Tano-Offin Forest Reserve
Guinea Massif du Ziama
Guinea Monts Nimba (part of Mount Nimba transboundary AZE)
Liberia Grebo
Liberia Lofa-Gola-Mano Complex
Liberia Nimba mountains
Liberia Wologizi mountains
Liberia Zwedru
Nigeria Afi River Forest Reserve
Nigeria Cross River National Park (Oban Division)
Sierra Leone Gola Forests
Uganda Budongo Forest Reserve
Uganda Bugoma Central Forest Reserve
Uganda Bwindi Impenetrable National Park
Uganda Kasyoha-Kitomi Forest Reserve
Uganda Kibale National Park
Uganda Semliki National Park
Zambia Hillwood
Zambia Jimbe Drainage
Zambia Source of the Zambezi
Zambia West Lunga National Park and Lukwakwa Game Management Area

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Cercococcyx olivinus. Downloaded from http://www.birdlife.org on 16/10/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 16/10/2019.