Definition of "guacharo" [‖Gua•cha•ro]

• A fruit-eating nocturnal bird (Steatornis caripensis) of South America, whose young have a layer of fat that yields an oil used in cooking and for lighting. Also called oilbird. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The most remarkable sight was at dusk, when thousands of guacharo flew out into the night, screaming overhead in a frantic flurry of wings and unholy noise."
• "The guacharo builds a solid nest like a cheese with a concave top."
• "Tom's advice was so sound that I led the way farther into the cave, where we made the place echo, as if about to fall upon our heads, as we had a couple of shots, each bringing down six of the guacharo birds."