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  1. By: Fisher, A. K. (Albert Kenrick), - United States. Bureau of Biological Survey. - United States. Department of Agriculture.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Biological Survey, 1907
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: (DNLM)D001717  Agricultural pests  Behavior  Birds  Birds of prey  Control  Hawks  Owls