July – October (North Serengeti and Masai Mara)
Following the rainfalls, the migrating animals move north and will stay in the Masai Mara National Reserve and the Northern Serengeti. Nothing stops the stampeding hordes. Tempted by greener pastures, the wildebeest arrive at the Mara River around July and cross over onto the Masai Mara plains. During these four months many animals cross and re-cross the Mara River several times following periodic rain showers. Crossing points form bottlenecks in which thousands of animals perish through trampling or drowning. Not surprisingly, hyenas, lions, leopards, crocodiles and even cheetahs capitalize on this glut of fresh meat. Typically, the wildebeest remain in the Masai Mara until October when they start returning to the Southern Serengeti.
November (Central and South Serengeti)
The army of animals return southward to the replenished grasslands of the southern Serengeti, thereby completing the migratory cycle.