"The Great Lakes region and Eastern North America is home to over 35 species of warblers. Warblers illustrates the sublte differences and rich diversity among these fascinating little birds. With crisp, clean photographs and precise identification notes, this book makes quick, accurate classification possible." -From back cover

Book includes details on the differences between the male and female of the species, seasonal plumage, distinctive markings, and a range map, among other useful information.