Rhinoceros Hornbill (Buceros rhinoceros) Rhinoceros Hornbill (Buceros rhinoceros) Rhinoceros Hornbill (Buceros rhinoceros). The Rhinoceros Hornbill is a large bird found in southeast Asia including the Malay Peninsula, Sumatra, Borneo, Borneo, and Java. This hornbill eats fruit and insects.KalimtantanBirds