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  1. By: Tucson Audubon Society, - United States. Forest Service. Southwestern Region,
    Edition: Slightly revised May 2015.
    Publication info: [Tucson, AZ] :U.S. Department of Agriculture, Forest Service, Southwestern Region,May 2015.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Arizona  Bird watching  Birds  Coronado National Forest  Coronado National Forest (Ariz. and N.M.)  Santa Catalina Mountains  Speciation  United States