"Parulines États-Unis Identification." . . "Oiseaux Chant États-Unis identification." . . "Canada." . . . . . "Warbler Guide"@en . . . "Guidebooks" . "Guidebooks"@en . . . . . . . . "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." . "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."@en . . . . . . . . "The warbler guide" . "The warbler guide"@en . . . . . . . "Electronic books"@en . . . "Handbooks, manuals, etc"@en . . . . . . . "Birdsongs." . . "NATURE Birdwatching Guides." . . "Parulines Canada. Identification." . . "Wood warblers Canada Identification." . . "Wood warblers." . . "SCIENCE Life Sciences Zoology Ornithology." . . . . "Waldsänger." . . "Nordamerika." . . "NATURE Animals Birds." . . "Oiseaux Chant Canada Identification." . . "Wood warblers United States Identification." . . "United States." . . "Birdsongs Canada Identification." . . "Birdsongs United States Identification." . .