According to the International Union for Conservation of Nature (IUCN), Indonesia has 13 hornbill species: 9 of them exist in Sumatra, and the rest exist in Sumba, Sulawesi, Papua and Kalimantan.
Segundo a Unión Internacional para a Conservación da Natureza (IUCN), Indonesia ten 13 especies de bucerótidos: 9 delas en Sumatra e o resto en Sumba, Sulawesi, Papúa occidental e Kalimantán (Borneo).