1. Nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter
   "guacharos use echolocation to navigate in the dark caves where they roost";
   - oilbird, Steatornis caripensis

Derived forms: guacharos

Type of: caprimulgiform bird

Part of: genus Steatornis, Steatornis

Encyclopedia: Guacharo