Although this species may have a small range, it 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 appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed 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.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Related state of the world's birds case studies
Cheke, R. A.; Mann, C. F.; Allen, R. 2001. Sunbirds: a guide to the sunbirds, flowerpeckers, spiderhunters and sugarbirds of the world. Christopher Helm, London.
Davidson, P. 1996. Habitats and bird communities in southern Yemen and Socotra. Sandgrouse 17: 102-129.
Forbes-Watson, A. 1964. Report on the Smithsonian Institution ornithological expedition to Socotra.
Porter, R. F.; Martins, R. P. 1996. Southern Yemen and Socotra: the report of the OSME survey in spring 1993. Sandgrouse 17: 1-188.
Porter, R.F., Christensen, S. and Schiermacker-Hansen, P. 1996. Poyser, London, UK.
Showler, D. A.; Davidson, P. 1996. The Socotra Sunbird Nectarinia balfouri. Sandgrouse 17: 148-150.
Further web sources of information
Explore HBW Alive for further information on this species
Text account compilers
Ekstrom, J., Butchart, S., Harding, M., Fisher, S.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2016) Species factsheet: Nectarinia balfouri. Downloaded from http://www.birdlife.org on 26/06/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/06/2016.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
|Current IUCN Red List category||Least Concern|
|Species name author||(Sclater & Hartlaub, 1881)|
|Population size||Unknown mature individuals|
|Distribution size (breeding/resident)||3,600 km2|
|Links to further information|
|- Additional Information on this species|