Two lions sleep at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

African elephants have their meals at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

Photo taken on July 16, 2014 shows two Thomson's gazelles at the Amboseli National Park of Kenya. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

 A giraffe is seen at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

Photo taken on July 16, 2014 shows a little bee-eater at the Amboseli National Park of Kenya. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

 A hyena holding food in its mouth is seen at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

Two African elephants are seen at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

Four zebras are seen at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

Photo taken on July 16, 2014 shows three giraffes at the Amboseli National Park of Kenya. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)

A hyena walks at the Amboseli National Park of Kenya, July 16, 2014. The annual wildlife migration that kicked off in early July from Tanzania's Serengeti National Park to Kenya's Massai Mara National Reserve marked the start of Kenya's tourism peak season. (Xinhua/Meng Chenguang)