The new guide to all the birds of the United States and Canada, produced in association with the American Bird Conservancy Covers every species found in the United States and Canada Fully-keyed and colour-coded for instant identification Every species is shown in the major plumages, with details in flight, feeding, nesting and chicks Each species has a complete entry covering distribution, identification, songs and calls A distribution maps is included with every entry Endangered birds are highlighted, with details of why they are in decline, and what is being done to prevent their extinction.