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Hornbills (Bucerotidae)

Crowned Hornbill (Tockus alboterminatus) - HBW 6, p. 491

French: Calao couronné German: Kronentoko Spanish: Toco Coronado
Other common names: African Crowned Hornbill

Taxonomy: Lophoceros alboterminatus Büttikofer, 1889, Gambos, Angola.
Forms a superspecies with T. bradfieldi and T. fasciatus; closely related also to T. hemprichii, all four having similar calls and displays. Various races proposed on basis of differences in size and darkness of plumage, including geloensis from NE & E of range, suahelicus from E coastal forest, stegmanni from Uganda to E Zaire and W Tanzania, angolensis from N Angola and nearby parts of Zaire, and australis from S, but populations intergrade widely. Species formerly referred to as Lophoceros melanoleucos, but this name clearl.. View all taxonomy...

Taxonomy: Lophoceros alboterminatus Büttikofer, 1889, Gambos, Angola.
Forms a superspecies with T. bradfieldi and T. fasciatus; closely related also to T. hemprichii, all four having similar calls and displays. Various races proposed on basis of differences in size and darkness of plumage, including geloensis from NE & E of range, suahelicus from E coastal forest, stegmanni from Uganda to E Zaire and W Tanzania, angolensis from N Angola and nearby parts of Zaire, and australis from S, but populations intergrade widely. Species formerly referred to as Lophoceros melanoleucos, but this name clearly applies to some other taxon, possibly Anthracoceros albirostris. Monotypic.

Distribution: SW Ethiopia; NE Zaire, NW Uganda, C Kenya and S Somalia S to Angola, extreme NE Namibia, Zimbabwe, Mozambique and E South Africa.

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