GUACHARO
oilbird, guacharo, Steatornis caripensis
(noun) nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter
Source: WordNet® 3.1
Etymology
Noun
guacharo (plural guacharos or guacharoes)
A nocturnal bird of South America and Trinidad (Steatornis caripensis or Steatornis steatornis); the oilbird.
Source: Wiktionary
Gua*cha"ro, n. Etym: [Cf. Sp. guácharo sickly, dropsical, guacharaca
a sort of bird.] (Zoöl.)
Definition: A nocturnal bird of South America and Trinidad (Steatornis
Caripensis, or S. steatornis); -- called also oilbird.
Note: It resembles the goatsuckers and nighthawks, but feeds on
fruits, and nests in caverns. A pure oil, used in place of butter, is
extracted from the young by the natives.
Source: Webster’s Unabridged Dictionary 1913 Edition