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  1. Birds of a Maryland farm : a local study of economic ornithology /
    By: Judd, Sylvester D.
    Publication info: Washington :U.S. Dept. of Agriculture, Division of Biological Survey,1902.
    Contributed by: Unknown
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  2. The bobwhite and other quails of the United States in their economic relations /
    By: Judd, Sylvester D.
    Publication info: Washington :U.S. Dept. of Agriculture,1905.
    Contributed by: Unknown
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