Dunnock relatively lower success for females. In times of scarcity, female territories expand to accommodate the lack of resources, causing males to have a more difficult time monopolizing females. Hence, females gain a reproductive advantage over males in this case. The dunnock possesses variable mating systems. Females are often polyandrous, breeding with two or more males at once, which is quite rare among birds. This multiple mating system leads to the development of sperm competition amongst the male suitors. DNA fingerprinting has shown that chicks within a brood often have different fathers, depending on the success of the males at monopolising
Sabu also called Ibebi to the Double House, feast-day attendant, pleasing every artificer, honored by every sovereign, a member of his court, attached to the heart of his lord, the favorite of his lord's heart, beloved of his lord, revered of Ptah, doing that which the god desired of him every day in the king's presence." Sabu also called Ibebi Sabu called Ibebi was a High Priest of Ptah during the reigns of Kings Unas and Teti. Sabu's mastaba in Saqqara (Mariette's E1) contains several inscriptions showing how the pharaoh favored him. Sabu called Ibebi and his son Ptahshepses share a double mastaba (E