Sibley'S Warblers Of East Na

Written and illustrated by david allen sibley, america's most widely respected bird illustrator and ornithologist, these folding guides offer instant access to just what birders need to know. Includes all 60 species of wood warblers found east of the rockies. Includes yellow throats, water thrushes,, and chats each entry includes multiple illustrations (adult male, female, juvenile, in-flight) and detailed range map.