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
The Mockery Bird The Mockery Bird The Mockery Bird is a humorous novel by Gerald Durrell, published in 1981 by William Collins, Sons and Co Ltd. The book, like the other works of the author, contains a strong environmental message. The story takes place on a (fictitious) tropical island called Zenkali. The island seems to be populated by the most eccentric people who came there from all around the world, along with the two indigenous tribes, the Fangoua and the Ginka. The Ginkas used to worship a dolphin god, while the Fangouas worshipped a strange avian, the Mockery Bird, which was hunted to