This comprehensive volume covers the natural history of each of over 160 members of the ducks, geese, swans and screamers of the world. Beautifully illustrated and authoritative, this remarkable book is destined to become the ultimate reference work on the waterfowl of the world. The eighteen chapters deal with every aspect of waterfowl biology, including habitat, distribution, plumage, migration, feeding, courtship, predators and mortality. A separate appendix includes weights of virtually every species and subspecies of waterfowl. Concise full-colour range maps accompany each species account. More than 750 beautifully reproduced photographs represent a lifetime of intensive research and field study by the author. This definitive volume on the Anseriformes will prove invaluable to anyone interested in the natural history of the waterfowl -- weather teacher, student, naturalist, bird watcher, conservationist, aviculturist or ornithologist.