CreatureData

Knobbed hornbill

Rhyticeros cassidix (Temminck, 1823)

VUVulnerablebirds

The knobbed hornbill (Rhyticeros cassidix) is a species in the family Bucerotidae, order Bucerotiformes. Recorded adults weigh about 2.36 kg. Its IUCN Red List status is Vulnerable.

Knobbed hornbill (Rhyticeros cassidix)
Photo: Lip Kee Yap · CC BY-SA 2.0 · Wikimedia Commons

Quick facts about the knobbed hornbill

Weight
2.36 kgsrc for Weight
Length
Not recorded
Lifespan
Not recorded
Diet
Frugivoresrc for Diet
Main food
fruit, insectsrc for Main food
Habitat
forestsrc for Habitat
Young per litter or clutch
2.4src for Young per litter or clutch
Lifestyle
Perchingsrc for Lifestyle
Migration
Sedentarysrc for Migration
Conservation status
Vulnerable (IUCN)src for Conservation status
Countries on record
Not recorded

Photos of the knobbed hornbill

Only freely licensed photos are shown. Each carries its creator and licence.

Knobbed hornbill (Rhyticeros cassidix)
T. R. Shankar Raman · CC BY-SA 3.0 · Wikimedia Commons

Where does the knobbed hornbill live?

Not recorded

What is the knobbed hornbill?

Quoted from WikipediaCC BY-SA 4.0

The knobbed hornbill (Rhyticeros cassidix), also known as Sulawesi wrinkled hornbill, is a colourful hornbill native to Indonesia. The species is sometimes placed in the genus Aceros. The knobbed hornbill is the faunal symbol of South Sulawesi province.

From the Wikipedia article “Knobbed hornbill” (en.wikipedia.org/w/index.php?title=Knobbed_hornbill&oldid=1369749671), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the knobbed hornbill endangered?

The knobbed hornbill is listed as Vulnerable on the IUCN Red List: it faces a high risk of extinction in the wild.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Vulnerable species. What the categories mean.

How is the knobbed hornbill classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classAves
  4. orderBucerotiformes
  5. familyBucerotidae
  6. genusRhyticeros
  7. SpeciesRhyticeros cassidix (Temminck, 1823)

Synonyms Aceros cassidix, Aceros cassidix brevirostris, Buceros cassidix, Rhyticeros cassidix cassidix

Other names and names in other languages (38)
  • Sulawesi red-knobbed hornbillEnglish
  • أبو قرن ذو النتوءArabic
  • أبو قرن المجعد السولاويسيArabic
  • Сулавеска птица носорогBulgarian
  • গুল-বসান ধনেশBangla
  • calau de SulawesiCatalan
  • zoborožec přílbovýCzech
  • cornbig mawr SwlawesiWelsh
  • Hvidhalet RynkenæbDanish
  • HelmhornvogelGerman
  • tubera buceroEsperanto
  • Cálao grande de CélebesSpanish
  • sinilott-sarvlindEstonian
  • نوکشاخ قبهدارPersian
  • celebesinsarvinokkaFinnish
  • celebesinuurrenokkaFinnish
  • Calao à cimierFrench
  • קלאו אדום-ראשHebrew
  • sulaveški kljunorožacCroatian
  • sisakos gogeHungarian
  • Julang sulawesiIndonesian
  • Bucero caruncolatoItalian
  • アカコブサイチョウJapanese
  • sulavesinis acerasLithuanian
  • Šalmuotasis ragasnapisLithuanian
  • Sulawesi-jaarvogelDutch
  • knopphornfuglNorwegian
  • dzioborożec hełmiastyPolish
  • calau-carunculadoPortuguese
  • calau-grande-de-celebesPortuguese
  • Сулавесский калаоRussian
  • zobákorožec prilbatýSlovak
  • Crvenošlemi kljunorožacSerbian
  • knölnäshornsfågelSwedish
  • Mavi Keseli BoynuzgagaTurkish
  • калао сулавеськийUkrainian
  • 蘇拉皺盔犀鳥Chinese
  • 苏拉威西皱盔犀鸟Chinese

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

Relatives of the knobbed hornbill

Other species in the same genus Rhyticeros.

CompareKnobbed hornbill vs Wreathed hornbillKnobbed hornbill vs Blyth's hornbillKnobbed hornbill vs Sumba hornbillKnobbed hornbill vs Plain-pouched hornbill

Common questions

Answered only where our data holds the answer.

How big is the knobbed hornbill?

An adult knobbed hornbill weighs 2.36 kg, according to values recorded on Wikidata.

Is the knobbed hornbill endangered?

The knobbed hornbill is listed as Vulnerable on the IUCN Red List, meaning it faces a high risk of extinction in the wild.

What does the knobbed hornbill eat?

Its recorded main food is fruit and insect.

What kind of animal is the knobbed hornbill?

The knobbed hornbill (Rhyticeros cassidix) belongs to the family Bucerotidae in the order Bucerotiformes.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Knobbed hornbill (Rhyticeros cassidix). Retrieved from https://creaturedata.com/animals/knobbed-hornbill

MLA

“Knobbed hornbill (Rhyticeros cassidix).” CreatureData, 2026, https://creaturedata.com/animals/knobbed-hornbill.

BibTeX
@misc{knobbed_hornbill_2026,
  title = {Knobbed hornbill (Rhyticeros cassidix)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/knobbed-hornbill},
  note = {Data as of 2026-11-11}
}