Dunnock the female. Males try to ensure their paternity by pecking at the cloaca of the female to stimulate ejection of rival males' sperm. Dunnocks take just one-tenth of a second to copulate and can mate more than 100 times a day. Males provide parental care in proportion to their mating success, so two males and a female can commonly be seen provisioning nestlings at one nest. Other mating systems also exist within dunnock populations, depending on the ratio of male to females and the overlap of territories. When only one female and one male territory overlap, monogamy is preferred. Sometimes,
Sabu also called Kem Sabu also called Kem Sabu called Kem was High Priest of Ptah, probably during the reign of Pepi I. His precise titles include "greatest of the directors of craftsmen belonging to the day of the festival of the Sun" (this is the main title of a high priest of Ptah), "priest of Sokar in the two houses" and "priest of Ptah. Sabu's mastaba (C 23) in Saqqara is described by Mariette. It is built of limestone. The cult chamber consists of only one room, that is decorated with agricultural scenes. Here was also found a statue, showing Sabu totally naked.