Finchfolio is a beginner’s field notebook for discovering the birds that live in cities. Its practical approach helps readers learn familiar local species before seeking out rarer birds, using observation, behaviour and habitat alongside visible field marks. The notebook offers three short guides covering how to get started, ethical birdwatching and urban habitats. Beginners can start without equipment; Finchfolio also explains binocular options, when to go out, how to observe carefully and how to keep useful field notes.

Ethical guidance puts bird welfare first, advising readers to keep their distance, avoid nests, recorded-call playback and baiting, and protect sensitive locations when sharing sightings. The habitat guide explores parks, waterways, streets, buildings and open or railway-edge spaces, highlighting where birds are likely to be found. Finchfolio also provides fourteen identification cards for common urban species, with descriptions, approximate lengths, size categories and habitat details. Filterable by habitat and size, the cards help users narrow down what they see.