LC
Olivaceous Flycatcher Fraseria olivascens



Taxonomy

Taxonomic note
Fraseria olivascens (del Hoyo and Collar 2016) was previously listed as Muscicapa olivascens.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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 -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 4,210,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value 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 - - -
Percentage in largest subpopulation - - -

Population justification: The global population size has not been quantified, but the species is reported to be uncommon to abundant (Urban 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
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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
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 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 Mount Nimba Strict Nature Reserve
Côte d'Ivoire Peko Mountain National Park
Côte d'Ivoire Lamto Ecological Research Station
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 Bakossi mountains
Cameroon Mont Nlonako
Cameroon Mount Kupe
Cameroon Yabassi
Cameroon Mount Cameroon and Mokoko-Onge
Cameroon Boumba - Bek
Cameroon Campo Ma'an complex
Cameroon Nki
Cameroon Lobéké National Park
Gabon Gamba Protected Areas Complex
Gabon Lopé Faunal Reserve
Gabon Ipassa Strict Nature Reserve
Gabon Minkébé Forest Reserve
Ghana Bia National Park and Resource Reserve
Ghana Dadieso Forest Reserve
Ghana Kakum National Park - Assin Attandaso Resource Reserve
Ghana Subri River Forest Reserve
Guinea Massif du Ziama
Equatorial Guinea Monte Alen National Park
Equatorial Guinea Nsork Highlands National Park
Liberia Wologizi mountains
Liberia Wonegizi mountains
Liberia Nimba mountains
Liberia Zwedru
Liberia Grebo
Nigeria Cross River National Park (Oban Division)
Sierra Leone Western Area Peninsula Forest National Park
Sierra Leone Kambui Hills Forest Reserve
Sierra Leone Gola Forests

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

Recommended citation
BirdLife International (2022) Species factsheet: Fraseria olivascens. Downloaded from http://www.birdlife.org on 28/06/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/06/2022.