Biodiversity Heritage Library
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By "United States. Division of Biological Survey. "
Distribution and migration of North American herons and their allies /
By: Cooke, Wells Woodbridge, - United States.
Publication info: Washington, D.C. :U.S. Dept, of Agriculture, Biological Survey,1913.
Contributed by: U.S. Department of Agriculture, National Agricultural Library
North American fauna.
By: U.S. Fish and Wildlife Service - United States.
Publication info: Washington :Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off.
Contributed by: Smithsonian Libraries