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| − | + | [[Image:White-crested_Hornbill.jpg|thumb|550px|right|Photo by {{user|Tom+Tarrant|Tom Tarrant}}<br />Semuliki NP, [[Uganda]], December 2005 ]] | |
| − | [[Image:White-crested_Hornbill.jpg|thumb|550px|right|Photo by Tom Tarrant <br /> | ||
'''Alternative name: Long-tailed Hornbill''' | '''Alternative name: Long-tailed Hornbill''' | ||
;[[:Category:Tropicranus|Tropicranus]] albocristatus | ;[[:Category:Tropicranus|Tropicranus]] albocristatus | ||
'''Disambiguation''': for the White-crested Hornbill found in south-east Asia, ''Berenicornis comatus'', see [[White-crowned Hornbill]] | '''Disambiguation''': for the White-crested Hornbill found in south-east Asia, ''Berenicornis comatus'', see [[White-crowned Hornbill]] | ||
==Identification== | ==Identification== | ||
| − | A black hornbill with a very long tail and a distinctive white crest. | + | 70cm. A black hornbill with a very long tail and a distinctive white crest |
| + | * Very long, graduated tail with white tip | ||
| + | * Bushy white crest | ||
| + | * Nominate subspecie with white face, ''cassini'' with black face, ''macrourus'' with white face, throat and upper breast | ||
| + | * Flesh-coloured throat skin | ||
| + | * Blackish bill and casque, basal half of upper mandible yellow in nominate and ''macrourus'', black in ''cassini'' | ||
| + | Females are smaller and have a shorter casque ridge. Juveniles have a smaller, greenish bill without casque. | ||
==Distribution== | ==Distribution== | ||
| − | Tropical [[Africa]] from [[Guinea]] in the west to [[Uganda]] in the east. | + | Tropical [[Africa]] from [[Guinea]] in the west to [[Uganda]] in the east. South to northern [[Angola]].<br /> |
| + | Patchily distributed but locally common. | ||
==Taxonomy== | ==Taxonomy== | ||
| + | Three subspecies recognized: | ||
| + | * ''T. a. albocristatus'' from southern [[Sierra Leone]] to southern [[Guinea]], [[Liberia]] and in western [[Ivory Coast]] | ||
| + | * ''T. a. macrourus'' from eastern [[Ivory Coast]] to [[Benin]] | ||
| + | * ''T. a. cassini'' from [[Nigeria]] to western [[Uganda]] and south to northern [[Angola]] | ||
Some authorities<sup>[[#References|1]]</sup> place this species in the genus ''Tockus''. | Some authorities<sup>[[#References|1]]</sup> place this species in the genus ''Tockus''. | ||
==Habitat== | ==Habitat== | ||
| − | + | Primary forest with dense tangles. Also in tall gallery and secondary forest.<br /> | |
| + | Occurs up to 1500m. | ||
==Behaviour== | ==Behaviour== | ||
| + | Feeds mainly on insects but takes also spiders, slugs, lizards, snakes, nestlings and shrews and also fruit which is taken from the ground.<br /> | ||
| + | Often follows driver-ants, bird groups or monkeys to hawk for insects disturbed by them.<br /> | ||
| + | Little known about breeding. The nest is placed in a natural cavity in a tree or palm stump. The female seals the entrance with its own droppings. Lays 2 eggs. | ||
==References== | ==References== | ||
| − | # | + | #{{Ref-Clements6thAug11}}#{{Ref-HBWVol6}} |
| + | {{Ref}} | ||
==External Links== | ==External Links== | ||
{{GSearch|Tropicranus+albocristatus}} | {{GSearch|Tropicranus+albocristatus}} | ||
[[Category:Birds]] [[Category:Tropicranus]] | [[Category:Birds]] [[Category:Tropicranus]] | ||
Revision as of 20:04, 20 April 2012
Alternative name: Long-tailed Hornbill
- Tropicranus albocristatus
Disambiguation: for the White-crested Hornbill found in south-east Asia, Berenicornis comatus, see White-crowned Hornbill
Identification
70cm. A black hornbill with a very long tail and a distinctive white crest
- Very long, graduated tail with white tip
- Bushy white crest
- Nominate subspecie with white face, cassini with black face, macrourus with white face, throat and upper breast
- Flesh-coloured throat skin
- Blackish bill and casque, basal half of upper mandible yellow in nominate and macrourus, black in cassini
Females are smaller and have a shorter casque ridge. Juveniles have a smaller, greenish bill without casque.
Distribution
Tropical Africa from Guinea in the west to Uganda in the east. South to northern Angola.
Patchily distributed but locally common.
Taxonomy
Three subspecies recognized:
- T. a. albocristatus from southern Sierra Leone to southern Guinea, Liberia and in western Ivory Coast
- T. a. macrourus from eastern Ivory Coast to Benin
- T. a. cassini from Nigeria to western Uganda and south to northern Angola
Some authorities1 place this species in the genus Tockus.
Habitat
Primary forest with dense tangles. Also in tall gallery and secondary forest.
Occurs up to 1500m.
Behaviour
Feeds mainly on insects but takes also spiders, slugs, lizards, snakes, nestlings and shrews and also fruit which is taken from the ground.
Often follows driver-ants, bird groups or monkeys to hawk for insects disturbed by them.
Little known about breeding. The nest is placed in a natural cavity in a tree or palm stump. The female seals the entrance with its own droppings. Lays 2 eggs.
References
- Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
- Del Hoyo, J, A Elliot, and J Sargatal, eds. 2001. Handbook of the Birds of the World. Volume 6: Mousebirds to Hornbills. Barcelona: Lynx Edicions. ISBN 978-8487334306
Recommended Citation
- BirdForum Opus contributors. (2024) White-crested Hornbill. In: BirdForum, the forum for wild birds and birding. Retrieved 30 April 2024 from https://www.birdforum.net/opus/White-crested_Hornbill
