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Difference between revisions of "Black-and-white-casqued Hornbill" - BirdForum Opus

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[[Image:Black_and_White-casqued_Hornbill.jpg|thumb|550px|right|Photo by {{user|MURAMURA|MURAMURA}} <br />Mpanga Forest, Mpigi, Central [[Uganda]], November 2006]]
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'''Alternative name: Grey-cheeked Hornbill'''
;[[:Category:Ceratogymna|Ceratogymna]] subcylindrica
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[[Image:Black_and_White-casqued_Hornbill.jpg|thumb|550px|right|Photo &copy; by {{user|MURAMURA|MURAMURA}} <br />Mpanga Forest, Mpigi, Central [[Uganda]], November 2006]]
''Bycanistes subcylindricus''
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;[[:Category:Bycanistes|Bycanistes]] subcylindricus
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''Ceratogymna subcylindrica''
 
==Identification==
 
==Identification==
Length 75 cm.
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60–70 cm (23½-27½ in)
 
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*Black overall plumage
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*White rump, tail-[[Topography#General Anatomy|coverts]] and underparts
 
A large black-and-white hornbill.
 
A large black-and-white hornbill.
 
====Similar Species====
 
====Similar Species====
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==Distribution==
 
==Distribution==
 
Tropical [[Africa]]; disjunct from [[Ivory Coast]] to [[Uganda]] and northern [[Angola]].
 
Tropical [[Africa]]; disjunct from [[Ivory Coast]] to [[Uganda]] and northern [[Angola]].
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[[Image:Black_and_White-casqued_Hornbill_VS.JPG|thumb|350px|right|Male and Female<br />Photo &copy; by {{user|Volker+Sthamer|Volker Sthamer}} <br />Entebbe, [[Uganda]], February-2019]]
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==Taxonomy==
 
==Taxonomy==
====Subspecies<sup>[[#References|[1]]]</sup>====
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Sometimes included in genus [[:Category:Ceratogymna|Ceratogymna]].
''Bycanistes subcylindricus'' has two subspecies:
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====Subspecies====
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''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)
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==Behaviour==
 
==Behaviour==
 
====Breeding====
 
====Breeding====
They nest in tree cavities. 2 eggs are laid.  
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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.
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The diet consists of a wide variety of fruit, particularly figs; they also take small animals and insects, including snails and millipedes.
 
==References==
 
==References==
#{{Ref-Clements6thDec09}}#Avibase
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#{{Ref-Clements6thAug15}}#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  
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#Handbook of the Birds of the World Alive (retrieved February 2016)
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#BF Member observations
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
{{GSearch|Hornbill+subcylindrica}}  
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{{GSearch|"Bycanistes subcylindricus" {{!}} "Ceratogymna subcylindrica" {{!}} "Black-and-white-casqued Hornbill" {{!}}"Black-and-white-casqued Hornbill"}}
[[Category:Birds]] [[Category:Ceratogymna]]
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{{GS-checked}}1
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<br />
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<br />
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[[Category:Birds]] [[Category:Bycanistes]]

Latest revision as of 19:32, 10 August 2023

Alternative name: Grey-cheeked Hornbill

Photo © by MURAMURA
Mpanga Forest, Mpigi, Central Uganda, November 2006
Bycanistes subcylindricus

Ceratogymna subcylindrica

Identification

60–70 cm (23½-27½ in)

  • Black overall plumage
  • White rump, tail-coverts and underparts

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.

Male and Female
Photo © by Volker Sthamer
Entebbe, Uganda, February-2019

Taxonomy

Sometimes included in genus Ceratogymna.

Subspecies

Bycanistes subcylindricus has two subspecies[1]:

  • B. s. subcylindricus:
  • 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 consists of a wide variety of fruit, particularly figs; they also take small animals and insects, including snails and millipedes.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2015. The eBird/Clements checklist of birds of the world: v2015, with updates to August 2015. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Sinclair I & Ryan P. 2003. Birds of Africa south of the Sahara. Princeton University Press. ISBN 0620207299
  4. Handbook of the Birds of the World Alive (retrieved February 2016)
  5. BF Member observations

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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