Flying is the dream of every human. Of course we have airplanes to make that dream a reality. A commercial flight can travel at an altitude of 30000-40000 ft. But some birds can reach such great altitude very easily. The followings are 10 highest flying birds in the world.dream of every human. Of course we have airplanes to make that dream a reality. A commercial flight can travel at an altitude of 30000-40000 ft. But some birds can reach such great altitude very easily. The followings are 10 highest flying birds in the world. the bird dream of every human. Of course we have airplanes to make that dream a reality. A commercial flight can travel at an altitude of 30000-40000 ft. But some birds can reach such great altitude very easily. The followings are 10 highest flying birds in the world. [themysteriousworld.com]