Answer: cahow

AnswerCrossword Clue
CAHOWSupposedly extinct sea bird, recently seen in Bermuda.
CAHOWSupposedly extinct bird, recently found in Bermuda.
CAHOWAlmost extinct bird of Bermuda.
CAHOWAlmost extinct petrel.
CAHOWBermuda bird.
CAHOWBermudan petrel
CAHOWBermuda petrel
cahowrare petrel, Pterodroma cahow, of islets off Bermuda, until recently thought to have become extinct
cahowa dark-colored petrel (Pterodroma cahow) formerly abundant in Bermuda but now nearly extinct