One of the most endangered birds in the world is the Great Indian Bustard, which also happens to be one of the heaviest flying birds. Found in India and Pakistan, it is critically endangered on the IUCN Red List with a population that could be as low as 250 individuals. Its counterpart in Africa is the Kori Bustard, which is possibly – amongst the males, at least – the heaviest living animal in the world capable of flight. Its only competition is the Great Bustard, a species found mainly in Europe with (again, possibly) the most sexual dimorphism between the male and female. While the Kori is not as endangered as the Great Indian, it is near threatened due to hunting and habitat loss.