 Bird Songs: 250 North American Birds in Song Author: Les Beletsky Manufacturer: Chronicle Books Top 20 - General AAS
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 National Geographic Field Guide to the Birds of North America, Fifth Edition Author: Jon L. Dunn Manufacturer: National Geographic
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 A Field Guide to the Birds of Eastern and Central North America Manufacturer: Houghton Mifflin
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 The Sibley Field Guide to Birds of Eastern North America Author: David Allen Sibley Manufacturer: Knopf
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 Kaufman Field Guide to Birds of North America Author: Kenn Kaufman Manufacturer: Houghton Mifflin
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 The Sibley Field Guide to Birds of Western North America Author: David Allen Sibley Manufacturer: Knopf
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 Birding by Ear: Eastern and Central North America (Peterson Field Guides(R)) Author: Richard K. Walton Manufacturer: Houghton Mifflin
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 The Sibley Guide to Bird Life & Behavior Author: David Allen Sibley Manufacturer: Knopf
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 Hawks from Every Angle: How to Identify Raptors In Flight Author: Jerry Liguori Manufacturer: Princeton University Press
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 The Shorebird Guide Author: Richard Crossley Manufacturer: Houghton Mifflin
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 A Field Guide to Western Birds: A Completely New Guide to Field Marks of All Species Found in North America West of the 100th Meridian and North of Mexico (Peterson Field Guides (R)) Manufacturer: Houghton Mifflin
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 Hawks in Flight: The Flight Identification of North American Migrant Raptors Author: Clay Sutton Manufacturer: Houghton Mifflin
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 National Geographic Complete Birds of North America (National Geographic) Author: Jonathan Alderfer Manufacturer: National Geographic
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 Ornithology Author: Frank B. Gill Manufacturer: W. H. Freeman
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 Sibley's Birding Basics Author: David Allen Sibley Manufacturer: Knopf
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 The Birder's Handbook: A Field Guide to the Natural History of North American Birds Author: Paul Ehrlich Manufacturer: Fireside
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 The Singing Life of Birds: The Art and Science of Listening to Birdsong Author: Donald Kroodsma Manufacturer: Houghton Mifflin
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 A Guide to the Birds of Mexico and Northern Central America Author: Steve N.G. Howell Manufacturer: Oxford University Press, USA
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 National Geographic Field Guide To The Birds Of North America, 4th Edition Author: National Geographic Society Manufacturer: National Geographic
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 A Field Guide to Warblers of North America (Peterson Field Guides (R)) Author: Jon Dunn Manufacturer: Houghton Mifflin
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 Sibley`s Birding Basics Author: David Allen Sibley Manufacturer: Knopf
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 Birds of North America (Kaufman Focus Guides, Flexicover Edition) Manufacturer: Houghton Mifflin
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 National Geographic Reference Atlas to the Birds of North America Manufacturer: National Geographic
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 A Field Guide to Warblers of North America (Peterson Field Guides(R)) Author: Jon Dunn
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Conservation of Natural Resources Author: David A Castillon Manufacturer: McGraw-Hill Science/Engineering/Math
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