Analysis of information sources in references of the Wikipedia article "Old Abe" in English language version.
The Wisconsin Veterans Museum and the University of Wisconsin Biotechnology Center's Molecular Archaeology Group tested four Old Abe feathers from the museum's collection and found conclusively that Old Abe was a male eagle.
The Wisconsin Veterans Museum and the University of Wisconsin Biotechnology Center's Molecular Archaeology Group tested four Old Abe feathers from the museum's collection and found conclusively that Old Abe was a male eagle.