n.nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter
同义词：guacharoSteatornis caripensis
英汉双解大词典
oilbird/ˈɔɪlˌbɜːd/
1.
N（名词）
a nocturnal gregarious cave-dwelling bird, Steatornis caripensis, of N South America and Trinidad, having a hooked bill and dark plumage: family Steatornithidae, order Caprimulgiformes 油鸱 (Also called guacharo)