560 pages : illustrations (chiefly color), color maps ; 22 cm
Bibliography
Includes bibliographical references (pages 555-556) and index.
Contents
How to use this book -- Icons and key terms -- How to use the maps -- Topographic tour -- What to notice on a warbler -- Aging and sexing warblers -- Understanding sonograms -- How to listen to warbler songs -- Learning chip and flight calls -- Visual finder guides -- Warbler song finder charts -- Chip call finder -- Flight call finder -- Species accounts -- Quiz and review -- Warblers in flight -- North American warbler taxonomy -- Measurements -- Silhouettes -- Habitat and behavior.
Summary
Warblers are among the most challenging birds to identify. They exhibit an array of seasonal plumages and have distinctive yet oft-confused calls and songs. The guide enables birders to quickly identify any of the 56 species of warblers in the United States and Canada.