the wildebeest migration is taking place in the Serengeti ecosystem in Tanzania and the Maasai Mara National Reserve in Kenya.

The migration is an annual event where millions of wildebeest, zebras, and gazelles move in a circular pattern through the Serengeti ecosystem and the Maasai Mara. The precise timing and location of the migration can vary from year to year depending on the weather and other environmental factors.

Typically, the wildebeest start their journey in the southern Serengeti in Tanzania in December, January, or February, where they give birth to their young. They then start to move northward, following the rains and the new grass growth. By June, the wildebeest have usually arrived in the western and northern Serengeti, where they cross the Mara River and enter the Maasai Mara in Kenya.

The migration usually peaks in July and August, when the wildebeest are crossing the Mara River, and it starts to head back south in October or November, returning to the southern Serengeti for the next calving season.

However, it's important to note that the migration is a dynamic event that can change from year to year, so it's best to check with local safari operators or park authorities to get the most up-to-date information on the current location of the migration