Justification of Red List Category
This species is classified as Near Threatened because it is thought to be undergoing a moderately rapid population reduction, as a result of habitat destruction. Rates of forest loss warrant monitoring within its range, were they to increase significantly it may warrant uplisting to Vulnerable.
The global population size has not been quantified, but the species is described as relatively uncommon and little known (del Hoyo et al. 2006).
There are no data on population trends; however, the species is suspected to be in slow to moderate decline owing to on-going habitat degradation.
Rhipidura tenebrosa is endemic to Makira (= San Cristobal) in the Solomon Islands where it is relatively uncommon and restricted to closed-canopy forest (Cain and Galbraith 1956, Buckingham et al. 1995, Hornbuckle 1999, Dutson 2011).
It is restricted to closed-canopy lowland forest, to a maximum of 700 m. Commonest in hills (Dutson 2011).
The lowlands of Makira are largely logged or under logging concessions. It is far less common in logged forest and further research may show it have a small total population which is in decline or to be threatened by logging (G. Dutson pers. obs. 1998, R. James in litt. 1999).
Conservation Actions Underway
None is known.
Text account compilers
Derhé, M., Dutson, G., Mahood, S., O'Brien, A.
James, R., Dutson, G.
BirdLife International (2019) Species factsheet: Rhipidura tenebrosa. Downloaded from http://www.birdlife.org on 18/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/11/2019.