Vigors, Nicholas Aylward. On a new genus of Falconidæ. Sketches in Ornithology. The Zoological Journal. April 1825, 2 (5): 65–70. The description of G. swainsonii is on pages 68–70, formal Latin description begins on p. 69. Biodiversity Heritage Library holds two digitized copies: one from London Museum of Natural History [1] （页面存档备份，存于互联网档案馆）, and the other from Smithsonian Libraries [2] （页面存档备份，存于互联网档案馆）
Vigors, Nicholas Aylward. On a new genus of Falconidæ. Sketches in Ornithology. The Zoological Journal. April 1825, 2 (5): 65–70. The description of G. swainsonii is on pages 68–70, formal Latin description begins on p. 69. Biodiversity Heritage Library holds two digitized copies: one from London Museum of Natural History [1] （页面存档备份，存于互联网档案馆）, and the other from Smithsonian Libraries [2] （页面存档备份，存于互联网档案馆）
