The rains have been very poor this year. Typically, the bulk of the herds would be around Lake Ndutu on the Ndutu Plains. This is where they prefer to calve, at the rich short grass plains.
However, this year the rains have been poor and the herds have had to split across the southern Serengeti looking for grazing. They are currently spread around the outer slopes of Ngorongoro, towards Maswa, around Kusini and north to the Seronera area (central Serengeti). Ndutu is only supporting a small percentage of the herds. They are waiting to calve at the first sign of rains and they will all congregate on Ndutu Plains to graze on the new shoots of grass.