Current view: Data table and detailed info
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
Red List history
Migratory status |
not a migrant |
Forest dependency |
high |
Land-mass type |
continent
|
Average mass |
- |
Population justification:
Analysis of data from distance point counts carried out in 2001 suggests that the total population numbered 310-654 individuals (Borghesio et al. 2010), roughly equating to 210-430 mature individuals. Surveys conducted using the same technique from 2009 to 2015 suggested that a severe decline had taken place, and that the population may then have been only 100-150 individuals (BirdLife International 2010, Borghesio et al. 2014, L. Borghesio in litt. 2012), but it was considered that further study and analyses were required to confirm the population trend and population size. In 2017, a study found the global population to be <200 individuals (Borghesio et al. unpublished data, as reported in Wagura 2018; Wagura et al. 2019). A total population of c.200 individuals would roughly equate to 130 mature individuals. The population size is therefore placed here in the band of 50-249 mature individuals.
Fewer than 30 individuals are believed to persist in the subpopulation at Ngangao (Wagura et al. 2018). Assuming the global population is 200 individuals, that leaves c.170 individuals divided between Vuria and Msidunyi. If each subpopulation was the same size, c.85 would remain in each fragment, which equates roughly to c.50 mature individuals. As the global population is estimated to be less than 200 total individuals, it is estimated that each subpopulation contains <50 mature individuals.
Trend justification: Most of the original forest in the Taita Hills has been cleared for cultivation or reforested with non-native, timber-tree species. Surveys in 2009-2010 strongly suggested that the species had undergone a severe decline of up to 80% since 2001 (Githiru and Borghesio 2010, BirdLife International 2010, L. Borghesio in litt. 2012). Habitat loss and degradation are believed to be ongoing (L. Lens in litt. 2019; Global Forest Watch 2020).
Country/territory distribution
Important Bird and Biodiversity Areas (IBA)
Recommended citation
BirdLife International (2024) Species factsheet: Taita Apalis Apalis fuscigularis. Downloaded from
https://datazone.birdlife.org/species/factsheet/taita-apalis-apalis-fuscigularis on 14/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 14/12/2024.