Tomb Of Osiris, Necropolis Of Sheikh Abd El-Qurna, West Bank, Thebes, Egypt

Since the ba was associated with power, and also happened to be a word for ram in Egyptian, Banebdjed was depicted as a ram, or as Ram-headed. A living, sacred ram was kept at Mendes and worshipped as the incarnation of the god, and upon death, the rams were mummified and buried in a ram-specific necropolis. Banebdjed was consequently said to be Horus' father, as Banebdjed was an aspect of Osiris.
Regarding the association of Osiris with the ram, the god's traditional crook and flail are the instruments of the shepherd, which has suggested to some scholars also an origin for Osiris in herding tribes of the upper Nile. The crook and flail were originally symbols of the minor agricultural deity Andjety, and passed to Osiris later. From Osiris, they eventually passed to Egyptian kings in general as symbols of divine authority.