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Socotra golden-winged grosbeak : ウィキペディア英語版 | Socotra golden-winged grosbeak
The Socotra golden-winged grosbeak or Socotra grosbeak (''Rhynchostruthus socotranus'') is a finch endemic to Socotra, an island in the Indian Ocean off the coast of Yemen. ''R. socotranus'' is by some authorities held to be the only species of the then-monotypic genus ''Rhynchostruthus'', including all other golden-winged grosbeaks therein as subspecies. But in recent times the three populations are usually considered a distinct species, with ''R. socotranus'' being limited to the Socotra population, the Arabian golden-winged grosbeak becoming ''R. percivali'', and the Somali golden-winged grosbeak ''R. louisae''.〔Kirwan & Grieve (2007)〕 ==Description== The males are grey-brown overall with a black bill, a dark head with a black mask, large white cheek patches, and large, bright yellow patches on the wings and tail. The females are similar to the males though somewhat duller, and the juveniles are rather streaky and lack the adults' distinctive head pattern.
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