Introduction -- Diversity of nests and major evolutionary trends in nest building -- Speciation and nest building -- Mate selection and nest building -- Bowerbirds, bowers, and nests -- Nest-site selection and the physical environment -- Adaptation of nest building to the physical environment -- Nest competitors and parasites -- Predators and nests -- How birds build their nests -- The analysis of nest building by weaverbirds -- The development of nest-building ability -- Internal factors in the control of nest building -- The evolution of gregarious nesting