2. The Mechanical Recording of the Nesting Activities of Birds Author Kendeigh, S. Charles and Baldwin, S. Prentiss Published 1930 Full Text View/download PDF
4. Some Audubon Letters Author Grinnell, George Bird and Audubon, John J. Published 1916 Full Text View/download PDF
5. Georgia's Rarities Further Discovered in a Second American Portfolio of John Abbot's Bird Plates Author Rhoads, Samuel N. Published 1918 Full Text View/download PDF
6. The Original Edition of Azara's 'Apuntamientos' Author Zimmer, John T. Published 1953 Full Text View/download PDF