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{{Short description|Species of bird}}
{{Taxobox
{{speciesbox
| name = Yellow-casqued Hornbill
| name = Yellow-casqued hornbill
| image = Ceratogymna elata -Hong Kong Zoo-8a.jpg
| image = Ceratogymna elata -Hong Kong Zoo-8a.jpg
| image_width = 300px
| image_caption = At [[Hong Kong Zoological and Botanical Gardens]]
| image_caption = At [[Hong Kong Zoological and Botanical Gardens]]
| status = NT | status_system = IUCN3.1
| status = VU
| status_system = IUCN3.1
| status_ref = <ref name="iucn status 12 November 2021">{{cite iucn |author=BirdLife International |date=2016 |title=''Ceratogymna elata'' |volume=2016 |page=e.T22682627A92954374 |doi=10.2305/IUCN.UK.2016-3.RLTS.T22682627A92954374.en |access-date=12 November 2021}}</ref>
| regnum = [[Animal]]ia
⚫
| genus = Ceratogymna
| phylum = [[Chordate|Chordata]]
⚫
| species = elata
| classis = [[Bird|Aves]]
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| authority = ([[Coenraad Jacob Temminck|Temminck]], 1831)
| ordo = [[Coraciiformes]]
| familia = [[Bucerotidae]]
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| genus = ''[[Ceratogymna]]''
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| species = '''''C. elata'''''
| binomial = ''Ceratogymna elata''
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| binomial_authority = ([[Coenraad Jacob Temminck|Temminck]], 1831)
}}
}}
The '''Yellow-casqued Hornbill''' (''Ceratogymna elata'') is found in the primeval [[rain forest]] of coastal regions of [[West Africa]], for example in [[Côte d'Ivoire]].


The '''yellow-casqued hornbill''' ('''''Ceratogymna elata'''''), also known as the '''yellow-casqued wattled hornbill''', is found in the [[rainforest]] of coastal regions of [[West Africa]], for example in [[Côte d'Ivoire]]. It is threatened by habitat loss.<ref>{{Cite journal |last=DATTA |first=APARAJITA |last2=RAWAT |first2=G. S. |date=December 2004 |title=Nest-site selection and nesting success of three hornbill species in Arunachal Pradesh, north-east India: Great Hornbill ''Buceros bicornis'', Wreathed Hornbill ''Aceros undulatus'' and Oriental Pied Hornbill ''Anthracoceros albirostris'' |url=http://dx.doi.org/10.1017/s0959270905000213 |journal=Bird Conservation International |volume=14 |issue=S1 |pages=S39–S52 |doi=10.1017/s0959270905000213 |issn=0959-2709|doi-access=free }}</ref>
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Yellow-casqued Hornbills are one of the largest birds of the forest, with adults weighing up to 2&nbsp;kg. They live mainly in the forest canopy, feeding on the ground only rarely. They live in small family groups containing at least one adult male and female, with one or two immature birds, though they sometimes gather in larger flocks to exploit a major food supply such as an ant or termite nest.


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The yellow-casqued hornbill is one of the largest birds of the West African forest, with adults weighing up to {{Convert|2|kg|lb|frac=2|abbr=off|spell=in}}. They live mainly in the forest canopy, rarely feeding on the ground. They live in small family groups containing at least one adult male and female, with one or two immature birds, though they sometimes gather in larger flocks to exploit a major food supply such as an ant or termite nest.
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The birds are occasionally preyed upon by [[Crowned Hawk-eagle]]s, and they respond to the presence of an eagle (sometimes indicated by its characteristic shriek) by mobbing, i.e. approaching it and emitting calls. Since the eagles depend on surprise to make a catch, this frequently causes them to leave the area. Recent research (Rainey et al., 2004) has shown that the birds respond in the same way to the [[alarm call]]s that [[Diana Monkey]]s, which live in the same areas, emit if they notice an eagle, and furthermore that they are able to distinguish the calls made by the monkeys to the presence of eagles from those they make in the presence of [[leopard]]s, which prey on the monkeys but not on the hornbills.


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The birds are occasionally preyed upon by [[crowned hawk-eagle]]s, and they respond to the presence of an eagle (sometimes indicated by its characteristic shriek) by mobbing&nbsp;– approaching it and emitting calls. Since the eagles depend on surprise to make a catch, this frequently causes them to leave the area. Recent research (Rainey et al., 2004) has shown that the birds respond in the same way to the [[alarm call]]s that [[Diana monkey]]s, which live in the same areas, emit if they notice an eagle, and that they can distinguish the calls made by the monkeys in the presence of eagles from those they make in the presence of [[leopard]]s, which prey on the monkeys but not on the hornbills.
Biologist [[Olivia Judson]] has remarked that "Yellow-casqued hornbills remind me of aging rock stars: their head feathers have that kind of wild look." <ref> [http://opinionator.blogs.nytimes.com/2009/10/06/leopard-behind-you/ ‘Leopard Behind You!’] by Olivia Judson, NY Times, October 6, 2009. She also comments on hornbill reactions to alarm calls in this article. </ref>


== References ==
==References==
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* Rainey, H. J., Zuberbühler, K., & Slater, P. J. B. (2004). Hornbills can distinguish between primate alarm calls. ''Proceedings of the Royal Society of London'' Series B, 271, 755–759.
* {{IUCN2006|assessors=BirdLife International|year=2004|id=4174|title=Ceratogymna elata|downloaded=11 May 2006}} Database entry includes a brief justification of why this species is near threatened
{{Reflist}}
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* Rainey, H. J., Zuberbühler, K., & Slater, P. J. B. (2004). Hornbills can distinguish between primate alarm calls. ''Proceedings of the Royal Society of London'' Series B, 271, 755-759.
{{reflist}}
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[[Category:Ceratogymna]]
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[[Category:Animals described in 1831]]


{{Use dmy dates|date=March 2017}}
[[fr:Calao à casque jaune]]

[[lt:Geltonšalmis palminis ragasnapis]]
{{Taxonbar|from=Q852440}}
[[ru:Златошлемный калао]]

[[zh-yue:黃盔犀鳥]]
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[[Category:Ceratogymna|yellow-casqued hornbill]]
[[Category:Birds of West Africa]]
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[[Category:Birds described in 1831|yellow-casqued hornbill]]

Latest revision as of 13:46, 5 May 2024

Yellow-casqued hornbill
At Hong Kong Zoological and Botanical Gardens
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Bucerotiformes
Family: Bucerotidae
Genus: Ceratogymna
Species:
C. elata
Binomial name
Ceratogymna elata
(Temminck, 1831)

The yellow-casqued hornbill (Ceratogymna elata), also known as the yellow-casqued wattled hornbill, is found in the rainforest of coastal regions of West Africa, for example in Côte d'Ivoire. It is threatened by habitat loss.[2]

The yellow-casqued hornbill is one of the largest birds of the West African forest, with adults weighing up to two kilograms (4+1⁄2 pounds). They live mainly in the forest canopy, rarely feeding on the ground. They live in small family groups containing at least one adult male and female, with one or two immature birds, though they sometimes gather in larger flocks to exploit a major food supply such as an ant or termite nest.

The birds are occasionally preyed upon by crowned hawk-eagles, and they respond to the presence of an eagle (sometimes indicated by its characteristic shriek) by mobbing – approaching it and emitting calls. Since the eagles depend on surprise to make a catch, this frequently causes them to leave the area. Recent research (Rainey et al., 2004) has shown that the birds respond in the same way to the alarm calls that Diana monkeys, which live in the same areas, emit if they notice an eagle, and that they can distinguish the calls made by the monkeys in the presence of eagles from those they make in the presence of leopards, which prey on the monkeys but not on the hornbills.

References

[edit]
  • Rainey, H. J., Zuberbühler, K., & Slater, P. J. B. (2004). Hornbills can distinguish between primate alarm calls. Proceedings of the Royal Society of London Series B, 271, 755–759.
  1. ^ BirdLife International (2016). "Ceratogymna elata". IUCN Red List of Threatened Species. 2016: e.T22682627A92954374. doi:10.2305/IUCN.UK.2016-3.RLTS.T22682627A92954374.en. Retrieved 12 November 2021.
  2. ^ DATTA, APARAJITA; RAWAT, G. S. (December 2004). "Nest-site selection and nesting success of three hornbill species in Arunachal Pradesh, north-east India: Great Hornbill Buceros bicornis, Wreathed Hornbill Aceros undulatus and Oriental Pied Hornbill Anthracoceros albirostris". Bird Conservation International. 14 (S1): S39 – S52. doi:10.1017/s0959270905000213. ISSN 0959-2709.

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