This volume investigates the avian populations of the Atlantic islands, specifically focusing on the species distribution and ecological characteristics of the region. The authors, David Armitage Bannerman and W. Mary Bannerman, utilize extensive field observations and historical records to document the bird life across these specific island chains. The work provides a systematic classification and descriptive analysis intended to serve as a comprehensive reference for naturalists and ornithologists.

Experts recognize this work as a foundational text for regional ornithology, noting the meticulous detail provided by the authors. Readers frequently highlight the academic density of the prose, which serves as a primary resource for historical ecological research in the region.