details of coloration, plumage, moults, geographical variation, body measurements, habitats, behaviour, conservation, and evolution and are backed up by a comprehensive bibliography. The more general,
introductory chapters review evidence about the group's evolutionary ancestry and place the birds' distributions, behaviour and physiology in an evolutionary context. The 23 superb plates by Martin Woodcock illustrate all the species, with behaviour and subtle variations depicted by delicate halftone drawings.
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