# Knobbed hornbill vs Blyth's Hornbill: the differences

> How do the Knobbed hornbill (Rhyticeros cassidix) and Blyth's Hornbill (Rhyticeros plicatus) differ? Classification, features, range, diet, size, IUCN status and legal protection, from cited sources.

Source: https://panduanhewan.org/en/species/differences/knobbed-hornbill-vs-blyth-s-hornbill/ · Updated 1 October 2026 · English · Bahasa Indonesia: https://panduanhewan.org/id/spesies/perbedaan/julang-sulawesi-dan-julang-irian/
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The knobbed hornbill (Rhyticeros cassidix) and Blyth's Hornbill (Rhyticeros plicatus) are different species in the same genus, Rhyticeros. Range in Indonesia — the knobbed hornbill: Sulawesi and the islands of Lembeh, Togian, Muna and Buton; Blyth's Hornbill: Papua, Maluku, West Papua.

| Aspect | [Knobbed hornbill](https://panduanhewan.org/en/species/knobbed-hornbill/) | [Blyth's Hornbill](https://panduanhewan.org/en/species/rhyticeros-plicatus/) |
|---|---|---|
| Scientific name | Rhyticeros cassidix | Rhyticeros plicatus |
| Indonesian name | Julang sulawesi | Julang Irian |
| Class | Aves | Aves |
| Order | Bucerotiformes | Bucerotiformes |
| Family | Bucerotidae | Bucerotidae |
| Range in Indonesia | Sulawesi and the islands of Lembeh, Togian, Muna and Buton | Papua, Maluku, West Papua |
| Endemic to Indonesia | Yes | No |
| Key features | Wrinkled red casque in males, white tail, blue throat | — |
| Diet | Mainly figs (Ficus) and other fleshy forest fruit | — |
| Diet type | herbivore (plant-eater) | herbivore (plant-eater) |
| Reproduction | laying eggs (oviparous) | laying eggs (oviparous) |
| IUCN status | Vulnerable | Least Concern |
| Legal protection | Protected (Regulation P.106/2018) | Protected (Regulation P.106/2018) |

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