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,
Salim Ali Bird Sanctuary have been recorded and the common species include the striated heron and western reef heron. Other species that have been recorded include the little bittern, black bittern, red knot, jack snipe and pied avocet (on transient sandbanks). The sanctuary is also host to mudskippers, fiddler crabs and other mangrove habitat specialists. A species of crustacean "Teleotanais indianis" was described based on specimens obtained in the sanctuary. Salim Ali Bird Sanctuary Salim Ali Bird Sanctuary is an estuarine mangrove habitat, which is declared as the bird sanctuary, and located on western tip of the Island of Chorão along the Mandovi River,