Definition of "oilbird" [oil•bird]

• See guacharo. (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 split-personality, echolocating, cave-dwelling oilbird doesn't seem to know"
• "As we watched the sun set, and heard the haunting cry of the nocturnal oilbird in the dark, we felt, literally, on top of the world."
• "Tomorrow we are off to the oilbird caves via Cumana to Caripe."