The birds of North America
New York :Published under the auspices of the Natural Science Association of America,1903.
biodiversitylibrary.org/page/35159667
American ornithology; or, The natural history of the birds of the United States,.
London,Cassell, Petter & Galpin[187-].
biodiversitylibrary.org/page/41411760
A history of the game birds, wild fowl and shore birds of Massachusetts and adjacent states,.
Boston,Wright Potter Printing Company, State Printers,1916.
biodiversitylibrary.org/page/15490883
Description: English: Exhibit in the National Museum of Natural History, Washington, DC, USA. Photography was permitted in the museum without restriction. Date: 27 March 2015, 12:09:31. Source: Own work. Author: Daderot.
Description: English: Exhibit in the National Museum of Natural History, Washington, DC, USA. Photography was permitted in the museum without restriction. Date: 27 March 2015, 12:09:21. Source: Own work. Author: Daderot.
Description: A photograph of a specimen of Tympanuchus cupido cupido, the extinct Heath Hen. Date: 26 September 2003 (upload date). Source: File from the English Wikipedia. Taken by the U.S. Forestry Department. Author: Jimfbleak.