Justification of Red List Category
This species's range is restricted to a single small island, within which it is scarce and local. It is therefore likely to have a moderately small global population size and is currently considered Near Threatened. It should be monitored carefully for any evidence of future population declines.
The global population size has not been quantified, but the species is described as poorly known. In 1981-1982 the species was described as unobtrusive but not particularly rare (del Hoyo et al. 2005).
Although this species is apparently largely unaffected by habitat loss, any future changes in population trend could have significant and rapid effects, given the intrinsically small overall population size.
Coracina fortis is restricted to Buru, Indonesia (BirdLife International 2001). In 1921-1922, it was regarded as unobtrusive but not particularly rare; in late 1989, it was sufficiently rarely encountered for no density estimates to be formulated; and in 1995-1996 a mere 14 birds were encountered at three localities, all reinforcing the notion that it is actually very local.
This species appears to be most abundant in higher-altitude primary forest with an open understorey (up to 1,500 m), although it is also recorded from disturbed habitats, lowland and monsoon forests.
As this species is tolerant of disturbed habitats and prefers high-altitude areas, it is probably little affected by current habitat changes.
Conservation Actions Underway
No targeted conservation actions are known for this species.
Text account compilers
Gilroy, J., Benstead, P., Westrip, J., Taylor, J.
BirdLife International (2019) Species factsheet: Coracina fortis. Downloaded from http://www.birdlife.org on 23/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/07/2019.