This book aims to provide a comprehensive guide for identifying bird species across Canada. It is authored by J. C. Finlay, an ornithologist with extensive knowledge of Canadian avian life. The guide presents detailed descriptions, range maps, and identification tips to assist birdwatchers in distinguishing between various species found within the country.

As a specialized field guide, this book is likely valued by ornithologists and amateur birdwatchers for its focused approach to Canadian avifauna. The detailed descriptions and range maps suggest a resource intended for serious identification purposes. Its utility would depend on the accuracy and comprehensiveness of the information provided regarding the diverse bird populations across Canada's varied ecosystems.