Journal: "Contributions to Ornithology", Sir William Jardine, (1800-1874), Box: 21, Folder: 35-36. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/204753 Accessed February 26, 2025.