Bustards, including floricans and korhaans, are large, terrestrial birds living mainly in dry grassland areas and on the steppes of the Old World. They range in length from 40 to 150 cm (16 to 59 in). Bustards are omnivorous and opportunistic, eating leaves, buds, seeds, fruit, small vertebrates, and invertebrates.
The kori bustard, member of the bustard family, is the largest flying bird native to Africa. In fact, the male kori bustard may be the heaviest living animal capable of flight.
More information on Bustard can be found on Wikipedia.