Sarus crane (Grus antigone). Male sarus crane in a wetland. The sarus crane is the world's tallest flying bird, with males measuring up to 1.8 metres tall and having a wing span of nearly 3 metres. It is found inhabiting the wetlands of India, southeast Asia and Australia, where it is an opportunistic feeder and will eat virtually anything, from plants and insects to small mammals and carrion. Photographed in India.