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look busy
The last Passenger Pigeon was shot at Babcock, WI in Sept. 1899. From the Wisconsin Society of Ornithology, "this species became extinct through the avarice and thoughtlessness of man."
photo credit:
R.M. Strong "Whitman, Charles Otis" 10 October 1910 (PD - public domain by date) hosted by: Photographic Archive, Special Collections Research Center, University of Chicago Library. photoarchive.liv.uchicago.edu image identifier: apf1-08736.
sources:
South Wood County Historical Corporation "Babcock #8" 44° 18.103′ N, 90° 6.73′ W (Babcock, WI), 1970. via [hmdb.org]
University of Chicago Library "Charles Otis Whitman: His Science, His Special Birds, and the Marine Biological Laboratory" Crear Library Exhibition, 6 January 2014. lib.uchicago.edu
Wisconsin Society of Ornithology "Passenger Pigeon Monument" 42° 59.278′ N, 91° 7.776′ W (Bagley, WI), 1947. via [hmdb.org]
see also: 'Some Documents Relating to the Passenger Pigeon' in "Wisconsin Magazine of History," Volume 59, Number 4, Summer 1976, pages 258-281.