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Ducks of Canada and the Northern Hemisphere
Ducks of Canada and the Northern Hemisphere Author:John Gooders, Trevor Boyer (Illustrator) A Definitive Guide to all species of duck in the Northern Hemisphere described by top ornithologist John Gooders and beautifully illustrated by Trevor Boyer. — Features include: full color illustrations with hundreds of color support drawings, flight profile illustrations of each species for easy identification, maps showing summer and winter ran... more »ges, and a quick reference guide for size and weight details, incubation and fledging periods and egg clutches.« less