S. Müller, 1843,
May be conspecific with C. fortis. Races pollens and unimoda sometimes treated as representing a separate species, but better evidence than their darker grey plumage required; floris and sumbensis also sometimes given species status, but review of evidence again required. Race alfrediana treated as a full species by some authors#R owing to distinctness in voice and morphology, but a male specimen (NHMUK 126.96.36.199) possesses a black mask, linking the taxon to others in the complex. Evidence of vocal differences on different islands where nominate race present#R may simply reflect overall variability within entire species. Further research needed. Putative race lettiensis (Leti, Moa and Sermata), supposedly with weaker bill, appears insufficiently distinct from nominate. Six subspecies recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!