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    • Colonial Birds Nesting on Man-Made and Natural Sites in the U.S. Great Lakes 

      Scharf, William C. (U.S. Army Engineer Waterways Experiment Station, 1978-05)
      Habitats and nesting populations of colonial nesting birds of the U. S. Great Lakes were determined by aerial census, ground nest observations, and vegetation analysis during 1976 and 1977. Thirteen species at 267 colonies ...