Presents an analysis of the breeding and migrant avifauna of the three islands since the first ornithologists visited in 1886. Status, distribution and habitats are described for all 222 species, with accompanying breeding data for 49 species. The monograph aims to place the Cayman Islands Avifauna in its historic and modern biogeographical context in the western Caribbean and to contribute to the database on Neotropical migrants, presently 79% of the Islands' avifauna.