. "VU" . . . "Great bustard"@en . . . . . "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. European populations are mainly resident, but Asian birds move further south in winter. Portugal and Spain now contain about 60% of the world's population."@en . "IUCN3.1" . .