Kevin J. McGowan
Cornell Lab of Ornithology Waterfowl ID Series: 3 Sea Ducks & Others (Nature Observation North America)
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...
$7.95