Bustards, including floricans and korhaans, are large and highly terrestrial birds mainly associated with dry open country and steppes in the Old World. They range in length from 40 to 150 cm (16 to 59 in). They make up the family Otididae (formerly known as Otidae). Bustards are omnivorous and opportunistic, eating leaves, buds, seeds, fruit, small vertebrates, and invertebrates.

Bustards are all fairly large with the two largest species, the Kori Bustard (Ardeotis kori) and the great bustard (Otis tarda), being frequently cited as the world's heaviest flying birds. In both the largest species, large males exceed a weight of 20 kg (44 lb), weigh around 13.5 kg (30 lb) on average and can attain a total length of 150 cm (59 in).
Black-bellied Bustard in KenyaFemale Buff-crested BustardFemale Buff-crested BustardHartlaub's Bustard in KenyaKori Bustard in TanzaniaKori Bustard in breeding plumageMale White-bellied Bustard in TanzaniaMale White-bellied Bustard