Hitherto treated as conspecific with C. notatus and C. voeltzkowi, but differs from latter in characters given under that species. Differs from former in its (in male) all-purple vs bright turquoise-green and basally purple chin to upper breast (3); purplish-blue vs mid-blue sheen on metallic green upperparts (1); (in female) much paler, softer-edged grey streaks on underparts (2); paler upperparts (ns); (both sexes) larger size (published mean wing of 10 males 74.5 mm vs of 21 males 69.6#R; allow 2); few available recordings suggest significant vocal difference#R. Proposed race nesophilus (from Grand Comoro) is treated as a synonym. Monotypic.
Grand Comoro, in W Comoro Is.
Food and feeding
Status and conservation
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