Justification of Red List category
This species is not believed to approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is suspected to be stable and hence does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is unknown but is unlikely to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Population justification
The population size is unknown, but the species is described as uncommon and local (Allen 2020). Given the area of habitat remaining within the range however, the global population size is unlikely to be especially small.
Trend justification
Remote sensing data (Global Forest Watch 2024, using data from Hansen et al. [2013] and methods disclosed therein) indicate that forest loss is slow within the range (ongoing at a rate equivalent to 1-2% within ten years). Additionally, this species is found in secondary forest, including selectively logged and degraded areas (Dickinson et al. 1991, Dutson 1993, Poulsen 1995, Allen 2020). As such, in the absence of evidence for any declines or substantial threats, the population trend is suspected to be stable.
Ficedula disposita is endemic to Luzon, Philippines.
The species inhabits lowland dense secondary-growth forest and appears to survive well in selectively logged and degraded areas, usually below 700 m (Dickinson et al. 1991, Dutson 1993, Poulsen 1995, Allen 2020).
Forest loss is currently ongoing at a very slow rate and is unlikely to be a threat given the species' ability to adapt to secondary and degraded forest.
Text account compilers
Vine, J.
Recommended citation
BirdLife International (2024) Species factsheet: Furtive Flycatcher Ficedula disposita. Downloaded from
https://datazone.birdlife.org/species/factsheet/furtive-flycatcher-ficedula-disposita on 22/11/2024.
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 22/11/2024.