Dunnock two or three adjacent female territories overlap one male territory, and so polygyny is favored, with the male monopolising several females. Polygynandry also exists, in which two males jointly defend a territory containing several females. Polyandry, though, is the most common mating system of dunnocks found in nature. Depending on the population, males generally have the best reproductive success in polygynous populations, while females have the advantage during polyandry. Studies have illustrated the fluidity of dunnock mating systems. When given food in abundance, female territory size is reduced drastically. Consequently, males can more easily monopolise the females. Thus, the mating
Laughing Bird Caye in the central lagoon of the Belize Barrier Reef. Laughing Bird Caye is a long island that sits on an unusually long narrow ridge of reef called a faro. A faro is an angular atoll on a continental shelf, which is also called a shelf atoll. Similar to other atolls, a faro has a steep drop off and has a central lagoon enclosed in the reef. This Laughing Bird Faro is separated from the mainland and the barrier reef by deep channels all around the faro. Laughing Bird Caye is a unique island structure in which its uniqueness adds to