In this Key there is a coloured picture of every kind of duck, goose or swan so far known to exist in the world - 245 kinds. The object of the book is to enable anyone, even without previous experience, to identify any bird within this group (called the family Anatidae) which they may see, and to discover its geographical range.
The illustrations mainly show the birds in full breeding plumage. They appear together with detailed lists of distribution, breeding and wintering locations, and migration habits.
Easy to use text, describing size, shape, colour, voice and behaviour, is supplemented by black and white line drawings.
Also included are sections on names and classification, a comprehensive index, and details of Wildfowl and Wetlands Trust reserves throughout the UK.