Knobbed Hornbill (Rhyticeros cassidix)

Other Names (World)
Knobbed Hornbill, Butung Hornbill, Red-knobbed Hornbill, Sulawesi Hornbill(!) Hornbill, Sulawesi Wrinkled Hornbill(!), Celebes Hornbill(!), Celebes Wrinkled Hornbill(!)

Family
Bucerotidae (Hornbills)

Size
104 cm

First Described (Guide)
(Temminck, 1823)

Habitat
Subtropical and tropical lowland moist forest. From sea-level - 1,800 m.

Range (Guide)

Indonesia (B).

Sulawesi, and offshore islands of Lembeh, Togian Is, Muna and Butung.

Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is unknown (2010).

Status VU
Habitat destruction, hunting for food, gold mining and fires are the main threats.

For more information see BirdLife International Species Factsheet.

Voice
A deep honking, 'wha-wha-wha'.

Xeno-Canto Sound Files (more (16)...)

Knobbed Hornbill (Rhyticeros cassidix) [XC19747]
by Joseph Monkhouse from Lore Lindu National Park, Sulawesi, Indonesia (call)

Knobbed Hornbill (Rhyticeros cassidix) [XC413950]
by Marc Anderson from Sulawesi: Tangkoko hills, Indonesia (call)

Subspecies
Sometimes placed in genus Rhyticeros. May form a superspecies with Wrinkled Hornbill (Rhabdotorrhinus corrugatus), Writhed Hornbill (Rhabdotorrhinus leucocephalus) and Rufous-headed Hornbill (Rhabdotorrhinus waldeni).

No subspecies.

References
See References.

Files:

JPG files for Knobbed Hornbill (Rhyticeros cassidix) - 10 files

More Information

BirdLife International

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BirdLife International Species Factsheet.

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