Nhialic
Nhialic is the creator and the god of sky and rain of the Dinka of what is now South Sudan. He is seen as distant from humans.
In the myth of the origin of death, the first humans, Garang and Abuk, were told to pound only a set amount of grain daily. Abuk pounded more, and the grain struck Nhialic in the face. He sent a blue bird to cut the rope joining heaven and earth, and people became mortal.