Each year around the same time the ‘Great Wildebeest Migration’ begins in the Ngorongoro area of the southern Serengeti plains in Tanzania – a natural phenomenon determined by the availability of grazing grass.
It is January to March when the calving season begins. Due to plenty of rain in this season, ripened grass is available for over 500,000 zebras and close to 2 million wildebeests.
February marks the start of this great migration, preceding the long rainy season when wildebeests spend their time grazing and giving birth to approximately 500,000 calves within a 2/3-week period, which starts abruptly and is remarkably synchronized. The calving grounds of the eastern Serengeti happen to be outside the hunting territories of most predators, such as hyenas, cheetahs, hunting dogs and lions although some losses to these predators can occur.