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LC
Socotra Grosbeak Rhynchostruthus socotranus

Justification
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 may be small, 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.

Taxonomic source(s)
Kirwan, G. M.; Grieve, A. 2007. Studies of Socotran birds II. One, two or three species: towards a rational taxonomy for the Golden-winged Grosbeak Rhynchostruthus socotranus. Bulletin of the African Bird Club 14(2): 159-169.

Taxonomic note
Rhynchostruthus socotranus (Sibley and Monroe 1990, 1993) has been split into R. socotranus, R. percivali and R. louisae following Kirwan and Grieve (2007).

Distribution and population
This species is restricted to the island of Socotra.

Population justification
Kirwan and Grieve (2007).

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Threats
This species's habitats do not appear to be under any threat at present.

Related state of the world's birds case studies

References
Kirwan, G. M.; Grieve, A. 2007. Studies of Socotran birds II. One, two or three species: towards a rational taxonomy for the Golden-winged Grosbeak Rhynchostruthus socotranus. Bulletin of the African Bird Club 14(2): 159-169.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Gilroy, J.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Rhynchostruthus socotranus. Downloaded from http://www.birdlife.org on 28/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/11/2014.

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.

Key facts
Current IUCN Red List category Least Concern
Family Fringillidae (Finches and Hawaiian honeycreepers)
Species name author Sclater & Hartlaub, 1881
Population size 6500 mature individuals
Population trend Stable
Distribution size (breeding/resident) 3,600 km2
Country endemic? Yes
Links to further information
- Additional Information on this species