At first sight just a small brown bird, the dunnock's unobtrusive appearance belies its extraordinary behavior and mating patterns. This book gives a full account of the mating systems of the dunnock or hedge sparrow, Prunella modularis, which include pairs, a male with two females, two males with one female, and several males with several females. Detailed observations, elegant field experiments, and DNA fingerprinting are combined to show how this...