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  1. Distribution and migration of North American herons and their allies /
    By: Cooke, Wells Woodbridge, - United States.
    Publication info: Washington, D.C. :U.S. Dept, of Agriculture, Biological Survey,1913.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Birds  Flamingos  Herons  Ibises  Migration  North America  Spoonbills  
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  2. On the trail of vanishing birds.
    By: Allen, Robert Porter.
    Publication info: New York,McGraw-Hill[1957]
    Contributed by: Prelinger Library (archive.org)
    Subjects: Flamingos  Rare birds  Spoonbills  Whooping crane  
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