Hornbills (Bucerotidae)
Knobbed Hornbill (Aceros cassidix) - HBW 6, p. 511
French: Calao à cimier
German: Helmhornvogel
Spanish: Cálao Grande de Célebes
Other common names: Butung/Red-knobbed Hornbill, Sulawesi(!)/Celebes(!) Hornbill/Wrinkled Hornbill
Taxonomy: Buceros cassidix Temminck, 1823, Sulawesi.
Sometimes placed in genus Rhyticeros. May form a superspecies with A. corrugatus, A. leucocephalus and A. waldeni. Monotypic.
Distribution: Sulawesi, and offshore islands of Lembeh, Togian Is, Muna and Butung.
- Least Concern Enlarge map
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A male arriving to the nest to feed the female, incarcerated inside Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Josep del Hoyo 7 August 2007 4 years ago 58 sec 4.9 -
A male feeding the female in the nest, that has been almost completely sealed with mud Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Josep del Hoyo 7 August 2007 4 years ago 49 sec 4.6 -
A female in a tree, moving Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Josep del Hoyo 7 August 2007 4 years ago 33 sec 4.4 -
A pair perched in a tree Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Soon Chye Ng 2002 7 years ago 1 min 4 sec 4.4 -
A male perched on a thick branch Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Josep del Hoyo 7 August 2007 4 years ago 46 sec 4 -
A male feeding the female, who is inside the nest, with fruits acummulated in his gut Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
Josep del Hoyo 7 August 2007 4 years ago 46 sec 3.9
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Portrait of the adult male.
Locality Vogelpark Walsrode, Walsrode, Lower Saxony, Germany (Monotypic species)
Tomasz Doroń 5 July 2010 7 weeks ago 4 -
A perched female bird.
Locality North Sulawesi, Sulawesi (Monotypic species)
mehdhalaouate 12 October 2005 2 years ago 4 -
A perched male bird with food in the bill.
Locality North Sulawesi, Sulawesi (Monotypic species)
mehdhalaouate 11 October 2005 2 years ago 4 -
A portrait of the male.
Locality Parrot Park (NOP), Veldhoven, North Brabant Province, Netherlands (Monotypic species)
Tomasz Doroń 25 June 2009 2 years ago 4 -
A close-up of a male.
Locality Vogelpark Walsrode, Walsrode, Lower Saxony, Germany (Monotypic species)
Josep del Hoyo 12 August 2006 2 years ago 4 -
An adult male peering upside down at the photographer!
Locality Tangkoko National Park, North Sulawesi, Sulawesi (Monotypic species)
David Beadle 14 October 2011 7 weeks ago 3.6
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In flight, wingbeats, Green IMP calling in background Locality Tangkoko National Park, North Sulawesi, Sulawesi
(Monotypic species)
dreyernp 14 July 2010 1 year ago 3 -
bird calling overhead Locality Dumoga Bone (Bogani Nani Wartabone) National Park, North Sulawesi, Sulawesi
Desmond Allen 30 August 1995 1 year ago 2.5
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