Hornbills (Bucerotidae)

Rhinoceros Hornbill (Buceros rhinoceros) - HBW 6, p. 503

French: Calao rhinocéros German: Rhinozeroshornvogel Spanish: Cálao Rinoceronte
Other common names: Great Rhinoceros Hornbill

Taxonomy: Buceros Rhinoceros Linnaeus, 1758, India; error = Malacca.
Forms a superspecies with B. bicornis. The two are reported to have hybridized both in wild and in captivity. Birds from Sumatra described as race sumatranus, on grounds of larger size, but appear inseparable from nominate. Three subspecies currently recognized.

Subspecies and Distribution:

  • rhinoceros Linnaeus, 1758 - S Thailand, Peninsular Malaysia and Sumatra.
  • borneoensis Schlegel & S. Müller, 1840 - Borneo.
  • silvestris Vieillot, 1816 - Java.