Bustard Bustard 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 . 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 , weigh around on average
Suchindram Theroor Birds Sanctuary trees and other bushes have formed an island at the centre, which gives refuge and is a resting place for birds. Suchindram is noted for the wide variety of migratory waterbirds that winter there, including: near threatened painted stork and spot-billed pelicans. Also seen here are cattle egrets, great cormorants, darters, purple swamphen, and bronze-winged jacanas. Resident raptors include pied kingfisher, brahminy kite and marsh harrier. Other water birds are dabchick, grey heron, garganey, purple heron, cinnamon bittern, open bill stork, cotton pygmy goose, whiskered tern and little tern, black-winged stilt, greenshank, little ringed plover and the common sandpiper In