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1 the Basics is written by Kevin J. McGowan and published by Waterford Press. It's available with International Standard Book Number or ISBN identification 1583559345 (ISBN 10) and 9781583559345 (ISBN 13).
This guide (#1 of a 3-part series of laminated folding guides) teaches simple techniques to distinguish waterfowl by shape. Sorting into sub-categories makes for easier ID and quick identifications based on flashes of white seen at a distance.