David Attenborough presents this series detailing the many and varied breeds of bird to be found around the world. In 'To Fly or Not to Fly', David traces the evolution of the bird back millions of years to the time of the dinosaurs. 'The Mastery of Flight' reveals the secrets behind birds' aeronautical skills. In 'The Insatiable Appetite', David looks at the tools birds use to help them forage for and consume food. 'Meat-Eaters' details the strategies and skills used by meat-eating scavengers. In 'Fishing for a Living', David looks at the birds who feed on the sea, from filter feeders to fish eagles. 'Signals and Songs' details the ways in which birds communicate, from song to colour patterns. In 'Finding Partners', David looks at the mating rituals and patterns and the part they play in a bird's life. In 'The Demands of the Egg', David looks at the dangers inherent in the natural urge to reproduce. 'The Problems of Parenthood' investigates the demands made on the parents of insatiably hungry young birds, while in 'The Limits of Endurance', David looks at the challenges birds must face in order to survive their constantly changing environment.