Harris' knowledge and research, coupled with an excellent artistic hand made this book a critical element to my Patagonian journey. Most notably, his plates are exceptional, and although not nearly as extensive, they are in most cases far superior to the recently released Collins Illustrated Checklist covering birds in the same region. Harris also includes solid notes on each species, sometimes going into very good depth. One frustration was the limits of Harris' coverage: the book is very much "coastal" Patagonia, and omits several species such as Andean Condors, or the beavers and woodpeckers of the Nothofagus forests. Know that Harris specifically covers Argentine Patagonia from Peninsula Valdes to Tierra del Fuego. Despite this constraint, the book aided me in identifying many species throughout inland Chile and the Chilean seaboard. Overall the guide made for a phenomenal travel companion.