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,
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