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The Ducks, Geese and Swans of North America
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Francis H. Kortright
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Turkeys, Ducks, and Geese
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Harold Alvah Nourse
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Ducks, Geese and Turkeys
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Edward Brown
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How to Know the Ducks, Geese and Swans of North America
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Charles Barney Cory
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Ducks and Geese
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Reliable Poultry Journal Publishing Company
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The Poultry Herald Manual
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Franklane L. Sewell, Ida E. Tilson
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How to Make £50 a Year by Keeping Ducks
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Henry Digby
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Ducks and Geese
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George Ellsworth Howard
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Ducks, Geese, and Swans of North America
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Guy A. Baldassarre
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Farmers' Bulletin
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United States. Department of Agriculture
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