Autumn – Zebra and Wildebeest begin their return migrations towards the permanent rivers as water sources and the bush begins to dry out. Savuti and Nogatsaa can see a migration of zebra in April and May. Low temperatures drop below 20°. The last summer bird migrants are on the wing, heading north again until the next rains. A good time to visit Savuti – and the central areas of the park if not too wet.