EN
Sierra Leone Prinia Schistolais leontica



Taxonomy

Taxonomic note

Schistolais leontica (del Hoyo and Collar 2016) was previously listed as Prinia leontica.

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
- C2a(i) C2a(i)

Red List history
Year Category Criteria
2017 Endangered C2a(i)
2016 Vulnerable B1ab(i,ii,iii,v); C2a(i)
2012 Vulnerable B1ab(i,ii,iii,v);C2a(i)
2008 Vulnerable B1a+b(i,ii,v); C2a(i)
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type continent
Average mass 12 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 88,800 km2 medium
Number of locations 6-10 -
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 1000-2499 mature individuals poor suspected 2017
Population trend decreasing medium suspected 1998-2008
Generation length 3.8 years - - -
Number of subpopulations 2-100 - - -

Population justification: The species's habitat is now limited, and recent surveys suggest that the population size could be very small. A total of just 26 pairs/family groups has been estimated at Pic de Fon (Demey 2009), while surveys of East Nimba, Liberia in 2011 located only 5 pairs/small family groups, suggesting the subpopulation there may be significantly lower than 250 mature individuals (Dowsett-Lemaire and Phalan 2013, B. Phalan in litt. 2017). Therefore, the global population size is tentatively placed in the range 1,000-2,500 mature individuals, with <250 mature individuals per subpopulation; although further survey effort may mean that this requires revision.

Trend justification: The species's population is suspected to be declining in line with high levels of forest clearance across its range. The likely rate of decline, however, has not been estimated.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Côte d'Ivoire extant native yes
Guinea extant native yes
Liberia extant native yes
Sierra Leone extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Côte d'Ivoire Mount Nimba Strict Nature Reserve
Côte d'Ivoire Gueoule and Glo Mountain Forest Reserves
Guinea Monts Nimba (part of Mount Nimba transboundary AZE)
Liberia Nimba mountains
Sierra Leone Loma Mountains Non-hunting Forest Reserve
Sierra Leone Tingi Hills Non-hunting Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Shrubland Subtropical/Tropical Moist major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major resident
Altitude 700 - 1600 m 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 Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Schistolais leontica. Downloaded from https://datazone.birdlife.org/species/factsheet/sierra-leone-prinia-schistolais-leontica on 23/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 23/02/2024.