noun
hornbill
Refers to any bird of the family Bucerotidae, characterized by a large curved bill often with a casque.
動物園でサイチョウを見た。
I saw a hornbill at the zoo.
The Japanese name サイチョウ is likely a direct borrowing from Chinese 犀鳥 (xīniǎo), meaning 'rhinoceros bird', referring to the horn-like casque on its bill.