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==Taxonomy== | ==Taxonomy== | ||
Sometimes included in genus [[:Category:Ceratogymna|Ceratogymna]]. | Sometimes included in genus [[:Category:Ceratogymna|Ceratogymna]]. | ||
| − | ====Subspecies<sup>[[#References|[1]]]</sup> | + | ====Subspecies==== |
| − | + | ''Bycanistes subcylindricus'' has two subspecies<sup>[[#References|[1]]]</sup>: | |
*''B. s. subcylindricus'': | *''B. s. subcylindricus'': | ||
:*[[Ivory Coast]] to [[Nigeria]] (west of Niger River) | :*[[Ivory Coast]] to [[Nigeria]] (west of Niger River) | ||
| Line 22: | Line 22: | ||
==Behaviour== | ==Behaviour== | ||
====Breeding==== | ====Breeding==== | ||
| − | They nest in tree cavities. | + | They nest in tree cavities. Two eggs are laid. These birds are long-lived and form life-long partnerships. Females need to know that they can fully rely on their partner as during breeding the female is "bricked -up" into a tree-hole using dried mud/fruit puree/droppings. Here she lays and incubates whilst her partner brings her and her youngster all of their food. When the single youngster is large enough the female breaks out and both adults continue to feed the youngster. |
====Diet==== | ====Diet==== | ||
The diet includes figs, fruits, insects and small animals found in the trees. | The diet includes figs, fruits, insects and small animals found in the trees. | ||
==References== | ==References== | ||
| − | #{{Ref- | + | #{{Ref-Clements6thAug11}}#Avibase |
# Sinclair I & Ryan P. 2003. ''Birds of Africa south of the Sahara''. Princeton University Press. ISBN 0620207299 | # Sinclair I & Ryan P. 2003. ''Birds of Africa south of the Sahara''. Princeton University Press. ISBN 0620207299 | ||
| + | #BF Member observations | ||
{{ref}} | {{ref}} | ||
==External Links== | ==External Links== | ||
{{GSearch|Hornbill+subcylindric}} | {{GSearch|Hornbill+subcylindric}} | ||
[[Category:Birds]] [[Category:Bycanistes]] | [[Category:Birds]] [[Category:Bycanistes]] | ||
Revision as of 21:46, 17 September 2011
- Bycanistes subcylindricus
Ceratogymna subcylindrica
Identification
Length 75 cm.
A large black-and-white hornbill.
Similar Species
Similar to the Brown-cheeked Hornbill and White-thighed Hornbill, but the central tail feathers are black to the tip.
Distribution
Tropical Africa; disjunct from Ivory Coast to Uganda and northern Angola.
Taxonomy
Sometimes included in genus Ceratogymna.
Subspecies
Bycanistes subcylindricus has two subspecies[1]:
- B. s. subcylindricus:
- Ivory Coast to Nigeria (west of Niger River)
- B. s. subquadratus:
Habitat
Forest edge, gallery forest and tall trees in secondary growth, evergreen forests and savanna.
Behaviour
Breeding
They nest in tree cavities. Two eggs are laid. These birds are long-lived and form life-long partnerships. Females need to know that they can fully rely on their partner as during breeding the female is "bricked -up" into a tree-hole using dried mud/fruit puree/droppings. Here she lays and incubates whilst her partner brings her and her youngster all of their food. When the single youngster is large enough the female breaks out and both adults continue to feed the youngster.
Diet
The diet includes figs, fruits, insects and small animals found in the trees.
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
- Avibase
- Sinclair I & Ryan P. 2003. Birds of Africa south of the Sahara. Princeton University Press. ISBN 0620207299
- BF Member observations
Recommended Citation
- BirdForum Opus contributors. (2024) Black-and-white-casqued Hornbill. In: BirdForum, the forum for wild birds and birding. Retrieved 6 June 2024 from https://www.birdforum.net/opus/Black-and-white-casqued_Hornbill
