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When birds change their feathers
Roma Gans
Hardcover (Crowell, March 15, 1980)Describes how and why animals shed their feathers, hair, shells, horns etc., with emphasis on the molting of birds.
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When Birds Change Their Feathers
Roma Gans
Library Binding (HarperCollins, March 1, 1980)Describes how and why animals shed their feathers, hair, shells, horns etc., with emphasis on the molting of birds.
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