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,
Wandsworth Common Wandsworth Common Wandsworth Common is a public common in Wandsworth, in the London Borough of Wandsworth, south London. It is and is maintained and regulated by Wandsworth Council. It is also a Ward of the London Borough of Wandsworth. The population of the ward at the 2011 Census was 15,247. There are a number of ponds and a lake, which can be used for fishing (with a permit). The lake is partially fenced off for the benefit of bird life, while other areas feature wooden pedestrian board walks, or open water's edge access. A small brick bridge crosses over the