Bird Mating Systems

Bird mating systems refer to the patterns of sexual behavior and pair bonding between male and female birds. These systems vary between species and can give insight into the evolution of bird behavior. In particular, the monogamous and polygynous mating systems are used to study the evolutionary strategies of birds. Monogamous mating is when one male and one female form a pair bond and mate exclusively with each other over the course of one or multiple breeding seasons. Conversely, polygynous mating is when one male will pair with multiple females. Through the study of bird mating systems, scientists are able to determine the cost/benefit ratio of these systems. For example, in monogamous systems there is a benefit in terms of parental care and energy devoted to reproductive success, while in polygynous systems the male may have an increased reproductive success but often at the expense of parental care. Knowing the cost/benefit ratio of different mating systems provides important information for birds whose mating habits are threatened by human activities.