l was planning this photo for a long time.l used to watch crossing videos sometimes but l did not have a chance to photograph it until this year. l was always considering that very slow shutter speed and panning are must to emphasize this big energy and rush. l knew that l needed a nice angle for panning. This big group of gnu tried crossing couple of times but they gave up. Finally after 2 hours waiting they started jumping and running, it was my lucky day, l could take a nice position with their first move and l had this shot.