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Meaning of boat-tailed grackle

boat'-tailed grack'le

Pronunciation: (bōt'tāld"), [key]
  1. a large grackle, Quiscalus major, of the southeastern U.S., that folds its tail into a shape resembling the keel of a boat.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.