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  1. 1
    The bird life of Louisiana /
    Book
  2. 2
    Florida bird life /
    Book
  3. 3
    Birds of Alabama /
    Book
  4. 4
    Birds of New Mexico /
    Book
  5. 5
    Legislation for protection of birds other than game birds.
    Published 1900
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    Government Document eBook
  6. 6
    Legislation for protection of birds other than game birds.
    Published 1902
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    Government Document eBook
  7. 7
    Report of chief of Bureau of Biological Survey.
    Published 1930
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    Government Document eBook
  8. 8
    Report of chief of Bureau of Biological Survey.
    Published 1931
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    Government Document eBook
  9. 9
    Report of chief of Bureau of Biological Survey.
    Published 1920
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    Government Document eBook
  10. 10
    Report of chief of Bureau of Biological Survey.
    Published 1923
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    Government Document eBook
  11. 11
    Report of chief of Bureau of Biological Survey.
    Published 1924
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    Government Document eBook
  12. 12
    Report of chief of Bureau of Biological Survey.
    Published 1925
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    Government Document eBook
  13. 13
    Report of chief of Bureau of Biological Survey.
    Published 1928
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    Government Document eBook
  14. 14
    Report of chief of Bureau of Biological Survey.
    Published 1929
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    Government Document eBook
  15. 15
    Explanation of proposed changes in regulations for protection of migratory birds.
    Published 1914
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    Government Document eBook
  16. 16
    Our migratory wild fowl and present conditions affecting their abundance.
    Published 1926
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    Government Document eBook
  17. 17
    Instructions for making bird count, 1917.
    Published 1917
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    Government Document eBook
  18. 18
    Guide for taking censuses of waterfowl.
    Published 1927
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    Government Document eBook
  19. 19
    Acquisition of land by purchase, gift, or lease under Migratory-Bird Conservation Act of Feb. 18, 1929.
    Published 1931
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    Government Document eBook
  20. 20
    Sanctuaries established under Migratory Bird Conservation Act.
    Published 1931
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    Government Document eBook
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