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Tockus
Genus of birds From Wikipedia, the free encyclopedia
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Tockus is a genus of birds in the hornbill family, Bucerotidae, that are native to Africa.
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Taxonomy
The genus Tockus was introduced in 1830 by the French naturalist René Lesson. He listed three species in his new genus but did not specify a type species.[2] In 1840 the English zoologist George Gray selected the type as Buceros erythrorhynchus, the northern red-billed hornbill.[3][4] The genus name is derived from a word used by local people in Senegal for a hornbill.[5][6]
Description
Hornbills in the genus Tockus are medium-sized African birds with triangular shaped curved bills. They can be found in tropical and sub-tropical African grasslands, forests and savannahs. They all have long tail feathers which are black on the exterior and white on the interior.
Species
The genus contains the following ten species:[7]
- Tanzanian red-billed hornbill, Tockus ruahae – central Tanzania
- Western red-billed hornbill, Tockus kempi – Senegal and Gambia to south Mauritania and west Mali
- Damara red-billed hornbill, Tockus damarensis – southwest Angola, north Namibia and west Botswana
- Southern red-billed hornbill, Tockus rufirostris – Malawi and Zambia to south Angola and Transvaal
- Northern red-billed hornbill, Tockus erythrorhynchus – south Mauritania through Somalia to northeast Tanzania
- Monteiro's hornbill, Tockus monteiri – southwest Angola to central Namibia
- Von der Decken's hornbill, Tockus deckeni – Ethiopia and Somalia to central Tanzania
- Jackson's hornbill, Tockus jacksoni – south South Sudan, southwest Ethiopia, northeast Uganda and west Kenya
- Southern yellow-billed hornbill, Tockus leucomelas – south
- Eastern yellow-billed hornbill, Tockus flavirostris – Eritrea, Ethiopia and Somalia to north Tanzania
References
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