Lek mating is engaged by Kori bustards. The courtship displays of the males are impressive and elaborate。Male Kori bustards usually display to attract several females. During the display, the oesophagus inflates to as much as four times its normal size and resembles a balloon.Their wings are dropped and their tails are raised upwards and forwards onto their back like a turkey. Though several males dispersed over a wide area gather to display but usually one is dominant. I was fortunate to see one of the displays during my visit to the Serengeti National Park, Tanzania, Africa.