Wildebeests are seen in Masai Mara National Reserve, Kenya, August 3, 2019 REUTERS/Goran Tomasevic

Wildebeests are seen in Masai Mara National Reserve, Kenya, August 3, 2019 REUTERS/Goran Tomasevic

Metallic sculptures depicting wildebeest are seen at Jomo Kenyatta International Airport during a labour dispute that grounded flights, on the outskirts of Nairobi, Kenya March 6, 2019. REUTERS/Thomas Mukoya

Wildebeests walk on a lake at the Amboseli National Park, Kenya August 18, 2018. Picture taken August 18, 2018. REUTERS/Baz Ratner

Wildebeests (connochaetes taurinus) cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

A wildebeest (connochaetes taurinus) and her calf are pictured as they prepare to cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) graze as they prepare to cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) jump to cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) cross the Mara river during their migration to the greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

Wildebeests (connochaetes taurinus) cross the Mara river during their migration to greener pastures, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Kenya's capital Nairobi, August 15, 2016. Picture taken August 15, 2016. REUTERS/Thomas Mukoya

A wildebeest, with tree branches trapped in its horn, is seen in Amboseli National park southeast of Kenya's capital Nairobi, March 25, 2016. Picture taken March 25, 2016. REUTERS/Thomas Mukoya

An elephant walks among zebras and wildebeests in Amboseli National Park, southeast of Kenya's capital Nairobi, March 25, 2016. REUTERS/Thomas Mukoya

Wildebeests are seen during a rain in Amboseli National park, Kenya, February 11,2016. REUTERS/Goran Tomasevic

A worker prepares a trophy of a wildebeest at the taxidermy studio in Pretoria, February 12 2015. Africa's big game hunting industry helps protect endangered species, according to its advocates. Opponents say it threatens wildlife. Now a mooted change in regulations in the United States could affect the number of foreigners who come to Africa to hunt big game, damaging the industry and possibly hurting wildlife. Picture taken February 12, 2015. REUTERS/Siphiwe Sibeko

Dead wildebeests are pictured after a stampede during the annual migration float in Mara river in Masai Mara National Reserve October 8, 2014. REUTERS/Goran Tomasevic (KENYA - Tags: ENVIRONMENT ANIMALS)

Vultures eat a dead wildebeest in Masai Mara National Reserve October 8, 2014. REUTERS/Goran Tomasevic (KENYA - Tags: ENVIRONMENT ANIMALS)

Vultures rush to eat a dead wildebeest in Masai Mara National Reserve October 8, 2014. REUTERS/Goran Tomasevic (KENYA - Tags: ENVIRONMENT ANIMALS)

Dead wildebeests are pictured after a stampede during the annual migration float in Mara river in Masai Mara National Reserve October 8, 2014. REUTERS/Goran Tomasevic (KENYA - Tags: ENVIRONMENT ANIMALS)

Dead wildebeests are pictured after a stampede during the annual migration float in Mara river in Masai Mara National Reserve October 8, 2014. REUTERS/Goran Tomasevic (KENYA - Tags: ENVIRONMENT ANIMALS)

An elephant grazes among wildebeests and zebras during a census at the Amboseli National Park, 290 km (188 miles) southeast of Kenya's capital Nairobi, October 9, 2013. Kenyan and Tanzanian governments are conducting a joint aerial count of elephants and other large mammals in the shared ecosystem of the Amboseli- West Kilimanjaro and Natron- Magadi landscape. The census will cover a 25,623 square kilometers area including 9,214 square kilometers of the Amboseli area, 6348 square kilometers of the Namanga-Magadi areas in south-western Kenya and 3,013 square kilometers of the West Kilimanjaro and 7,047 square kilometersof the Natron areas in North Tanzania. Picture taken October 9, 2013. REUTERS/Thomas Mukoya (KENYA - Tags: ENVIRONMENT ANIMALS)

A hot-air balloon flies over wildebeests (connochaetes taurinus) during their migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) prepare to cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) run over a hippopotamus as they cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) prepare to cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) prepare to cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

A Wildebeest (connochaetes taurinus) nurses its calf before crossing the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY ANIMALS TRAVEL)

Wildebeests (connochaetes taurinus) cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

Wildebeests (connochaetes taurinus) cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL - Tags: SOCIETY ENVIRONMENT ANNIVERSARY)

A hippopotamus opens its mouth as wildebeests (connochaetes taurinus) cross the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY ANIMALS TRAVEL)

Wildebeests (connochaetes taurinus) run after crossing the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL - Tags: SOCIETY ENVIRONMENT ANNIVERSARY IMAGES OF THE DAY)

Wildebeests (connochaetes taurinus) run after crossing the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY ANIMALS TRAVEL)

Tourists gather to view wildebeests (connochaetes taurinus) crossing the Mara river during a migration in the Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, August 25, 2010. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ENVIRONMENT ANNIVERSARY TRAVEL ANIMALS)

A hyena peers for its prey at the foot of Mount Kilimanjaro in Amboseli national park 290 km (188 miles) southeast of Kenya's capital Nairobi, February 10, 2010. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ENVIRONMENT ANIMALS SOCIETY)

Zebras drink water at the Amboseli national park, February 11, 2010, after a restocking journey from the Soysambu conservancy. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 11, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A tractor pulls a dead zebra at the Amboseli national park, February 10, 2010. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A dead zebra is seen at the Amboseli national park, February 10, 2010. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

Zebras run into the wilderness at the Amboseli national park, February 10, 2010, after a restocking journey from the Soysambu conservancy. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A zebra runs into the wilderness from a truck at the Amboseli national park, February 10, 2010, after a restocking journey from the Soysambu conservancy. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A Kenya Wildlife Services (KWS) ranger prepares to release zebras from a truck at the Amboseli national park, February 10, 2010, after a restocking journey from the Soysambu conservancy. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A Kenya Wildlife Services (KWS) ranger prepares to release zebras from a truck at the Amboseli national park, February 10, 2010, after a restocking journey from the Soysambu conservancy. Amboseli's zebra and wildebeest population has been decimated by drought and the park's carnivores are now roaming far and wide in search of food, killing cows, donkeys and goats tended by Maasai pastoralists. Picture taken February 10, 2010. To match Reuters Life! KENYA-WILDLIFE/ REUTERS/David Clarke (KENYA - Tags: ANIMALS ENVIRONMENT SOCIETY)

Zebras run at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. Kenya Wildlife Service (KWS) started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Zebras run at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. Kenya Wildlife Service (KWS) started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Zebras gather inside a trap at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. Kenya Wildlife Service (KWS) started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Zebras stand inside a Kenya Wildlife Service (KWS) truck at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Zebras gather inside a trap at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. Kenya Wildlife Service (KWS) started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Zebras stand inside a Kenya Wildlife Service (KWS) truck at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Kenya Wildlife Service (KWS) rangers lead zebras into a truck at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA)

Kenya Wildlife Service (KWS) rangers gather zebras inside a trap at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

A Kenya Wildlife Service (KWS) ranger instructs his colleagues on how to capture zebras inside a trap at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

A Kenya Wildlife Service (KWS) ranger gathers zebras inside a trap at the Soysambu Conservancy, 25 km from the Rift Valley town of Nakuru, February 10, 2010. KWS started the first phase capture of 7000 wild animals to restock Amboseli National Park. The restocking of Amboseli has been necessitated by last year?s prolonged drought that killed thousands of zebras and wildebeests in the park as well as the local community?s livestock. REUTERS/Thomas Mukoya (KENYA - Tags: ANIMALS)

Wildebeests (connochaetes taurinus) walk in the plains after crossing the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA TRAVEL ANIMALS ENVIRONMENT SOCIETY)

Wildebeests (connochaetes taurinus) cross the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL ENVIRONMENT SOCIETY)

A crocodile attacks a wildebeest (connochaetes taurinus) as it crosses the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL IMAGES OF THE DAY ENVIRONMENT SOCIETY)

Tourists gather to view wildebeests (connochaetes taurinus) crossing the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL ENVIRONMENT SOCIETY)

Wildebeests (connochaetes taurinus) cross the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL ENVIRONMENT SOCIETY)

Wildebeests (connochaetes taurinus) walk in a line before crossing the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA ANIMALS TRAVEL ENVIRONMENT SOCIETY)

Wildebeests (connochaetes taurinus) prepare to cross the Mara river during a migration in Masaai Mara game reserve, 270 km (165 miles) southwest of capital Nairobi, July 28, 2009. The annual zebra and wildebeest migration is expected to attract a large number of tourists but there are fears on the dropping water levels due to the deforestation in the Mau forest complex; the largest indigenous forest in East Africa. The migration is the world's greatest wildlife spectacle taking place between the open plains of the Serengeti and the Masaai Mara as the animals migrate to greener pastures as the seasons change and the circle of life and death continues. REUTERS/Thomas Mukoya (KENYA)