Waterfowl can be identified by using information about size, shape,
color pattern, markings, behavior, habitat, range and calls. All clues
are important, but by far the most important things to concentrate on
for this group are shape and patterns of white. This guide features more
than 25 species of ducks and includes both silhouettes that emphasize
distinctive shape and placement of white, and full color images of both
males and females. Sections address behavior, habitat, color patterns
and other characteristics important for each species. A portion of the
proceeds from the sale of this guide support continued educational
activities by The Cornell Lab of Ornithology. Made in the USA.