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| Knobbed Hornbill Rhyticeros cassidix
- Adult male in flight |
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| Photographer : | © Marie-France Grenouillet |
| Location : | Tangkoko National Park, northern Sulawesi, Indonesia |
| Date : |
19 June 2013 |
| English synonyms: | Buton Hornbill, Celebes Hornbill, Sulawesi Wrinkled Hornbill, Red-knobbed Hornbill, Greater Sulawesi Hornbill |
| Bird Family : | Bucerotidae - Hornbills |
| Bird Group : | BUCEROTIFORMES |
| Red Data Status : | Vulnerable |
| Remarks : | |
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