Records around 900 species of birds. Species accounts are divided into sections: Field Identification, Habitat, Distribution and Population, Movements, Food, Social Behaviour, Voice, Breeding and Plumages and related matters.
Part A: Emus; Cassowaries; Ostriches; Kiwis; Grebes; Penguins; Albatrosses; Fulmars, Petrels, Prions, and Shearwaters; Storm-petrels; Diving-petrels; Part B: Pelicans; Gannets and Boobies; Darters; Cormorants and Shags; Frigatebirds; Tropicbirds; Bitterns and Herons; Storks; Ibises and Spoonbills; Flamingoes; Magpie Goose; Wildfowl; Ducks; Appendices; Indices.