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
European Bird Census Council Census News", which has been running since 1987. European Bird Census Council The European Bird Census Council (EBCC) is an ornithological organisation which studies the population, distribution and demographics of European birds in order to inform conservation and management efforts. The organisation is headquartered in the Netherlands, and has active members in over 40 countries. The EBCC was founded in 1992, following the merger of two ornithological organisations, the European Ornithological Atlas Committee and the International Bird Census Committee. The EBCC is responsible for the Pan-European Common Bird Monitoring Scheme (PECBMS), which aims to collect data from national bird monitoring