Bustards are large terrestrial birds mainly associated with dry open country and steppes in the Old World. They make up the family Otididae (formerly known as Otidae).
The Great Bustard, Otis tarda, is in the bustard family, the only member of the genus Otis. It breeds in southern and central Europe and across temperate Asia.
Definitions of bustard at Dictionary.com. ... any of several large, chiefly terrestrial and ground-running birds of the family Otididae, of the Old World and Australia, related to ...