Dunnock system can be shifted from one that favours female success (polyandry), to one that promotes male success (monogamy, polygynandry, or polygyny). The dunnock builds a neat nest (predominantly from twigs and moss and lined with soft materials such as wool or feathers), low in a bush or conifer, where adults typically lay three to five unspotted blue eggs. Broods, depending on the population, can be raised by a lone female, multiple females with the part-time help of a male, multiple females with full-time help by a male, or by multiple females and multiple males. In pairs, the male and the
Sabu also called Tjety Ptah"), "chief lector priest", "sole friend" and "count". The text mentions that before Sabu was made "High Priest of god Ptah" there were always two men holding this position. Sabu was the first man to hold the position solely. His chronological position within the Sixth Dynasty is uncertain. Sabu also called Tjety Sabu also called Tjety was the High Priest of Ptah in the Sixth Dynasty of Ancient Egypt, around 2300 BC. Sabu is mainly known from the remains of his mastaba in Saqqara (E.3). The inscriptions on the fragment of a false door were copied in the Nineteenth Century