This book investigates the depth of a reader's ornithological knowledge through a structured series of identification challenges and trivia. Chris Harbard, a recognized authority in birding and conservation, utilizes his extensive field experience to curate a comprehensive testing mechanism. The work functions as both an educational tool and a competitive manual, designed to sharpen the observational skills required for accurate avian identification in the wild.

The subject matter points to a specialized, practical resource intended for enthusiasts seeking to measure their field proficiency. The framing suggests a structured, accessible approach to ornithological study that serves as a reliable companion for active birdwatchers.