On a trip to the Korean demilitarised zone (DMZ), visitors can look across to the secretive North, see tunnels built to invade South Korea, and walk onto bridges that once joined two nations still technically at war.
Usually moving together, they rise to the sky in unison to search for food.
They find and peck on Job s tears, one of their favorite grains.
Dancing birds can sometimes be seen trying to attract their one and only mate in their 80-year life.
Standing up to 150 centimeters tall these rare winter migrants are classed as an endangered species. Over a thousand red-crowned cranes and some 2 thousand white-naped cranes, roughly one third of the total worldwide population of each species, come to Korea to spend the winter, with many coming to this riverside in Yeoncheon. Coming all the way from Siberia in search of warmer climes, these birds reside in and around the Demilitarized Zone until March.