Definition of boat-tailed grackle in English:

boat-tailed grackle

noun

  • Any of several American grackles of the genus Quiscalus (family Icteridae) having keel-shaped tails; specifically Q. major, found in coastal areas of the south-eastern United States.

Origin

Late 18th century; earliest use found in John Latham (1740–1837), naturalist.