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,
Common redpoll Common redpoll The common redpoll ("Acanthis flammea") is a species of bird in the finch family. It breeds somewhat further south than the Arctic redpoll, also in habitats with thickets or shrubs. The common redpoll was listed in 1758 by Linnaeus in the 10th edition of his "Systema Naturae" under the binomial name "Fringilla flammea". The current genus name "Acanthis" is from the Ancient Greek "akanthis", a name for a small now-unidentifiable bird, and "flammea" is the Latin for "flame-coloured". The common redpoll was previously placed in the genus "Carduelis". Molecular phylogenetic studies showed that the Arctic and common redpolls