Tessmann's Flycatcher (Fraseria tessmanni) - BirdLife species factsheet

Tessmann's Flycatcher Fraseria tessmanni

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Fraseria tessmanni (del Hoyo and Collar 2016) was previously listed as Muscicapa tessmanni.

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.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2017	Least Concern
2016	Data Deficient
2012	Data Deficient
2008	Data Deficient
2004	Data Deficient
2000	Data Deficient
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	3,250,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	unknown	-	-	-
Generation length	2.9 years	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population size is unknown, however the species has a large range and it is now considered to be common in south-west Ghana, where it has a wide distribution (F. Dowsett-Lemaire in litt. 2013). Given its wide distribution in Ghana, it is also likely to be widespread across the border in Côte d’Ivoire (F. Dowsett-Lemaire in litt. 2013).

Country/territory distribution

Country/Territory	Presence	Origin	Breeding visitor
Cameroon	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Côte d'Ivoire	extant	native	yes
Equatorial Guinea	extant	native	yes
Ghana	extant	native	yes
Liberia	extant	native	yes
Nigeria	extant	uncertain
Sierra Leone	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Cameroon	Boumba - Bek
Cameroon	Dja Faunal Reserve
Cameroon	Lobéké National Park
Cameroon	Nki
Congo, The Democratic Republic of the	Luki Forest Reserve
Congo, The Democratic Republic of the	Okapi Faunal Reserve
Côte d'Ivoire	Gueoule and Glo Mountain Forest Reserves
Côte d'Ivoire	Lamto Ecological Research Station
Côte d'Ivoire	Mount Nimba Strict Nature Reserve
Côte d'Ivoire	Peko Mountain National Park
Equatorial Guinea	Monte Alen National Park
Nigeria	IITA Forest Reserve, Ibadan
Sierra Leone	Gola Forests

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Arable Land	suitable	resident
Artificial/Terrestrial	Plantations	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Wetlands (inland)	Bogs, Marshes, Swamps, Fens, Peatlands	suitable	resident
Altitude		Occasional altitudinal limits

Threats & impact

Threat (level 1)

Threat (level 2)

Impact and Stresses

Agriculture & aquaculture

Annual & perennial non-timber crops - Small-holder farming

Timing

Scope

Severity

Impact

Ongoing

Minority (<50%)

Rapid Declines

Medium Impact: 6

Stresses
Ecosystem conversion

Biological resource use

Logging & wood harvesting - Unintentional effects: (large scale) [harvest]