1. [Gambel's Partridge] Callipepla gambelii.: J.Gould & H.C. Richter del et lith.: Hullmandel & Walton, Imp. Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Gould, John (British painter, ornithologist, 1804-1881), ... Engraver: H. C. Richter
2. Loxia leucoptera. e mont Himalaya. Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Baedeker, F. W. J. (Friedrich Wilhelm Justus) (German pharmacist, ornithologist, and ornithological illustrator, 1787-1865) Engraver: Hermann Schlegel, 1804-1884
3. Acanthis hollbölli Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Baedeker, F. W. J. (Friedrich Wilhelm Justus) (German pharmacist, ornithologist, and ornithological illustrator, 1787-1865) Engraver: Hermann Schlegel, 1804-1884
4. Nectarinia gouldiæ.: J. Gould & H.C. Richter, del et lith.: Walter, imp. Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Gould, John (British painter, ornithologist, 1804-1881), ... Engraver: H. C. Richter
5. [Lunated Forktail] Enicurus maculatus, Vigors.: J. Gould & H.C. Richter, del et lith.: Walter, imp. Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Gould, John (British painter, ornithologist, 1804-1881), ... Engraver: H. C. Richter
6. Euplocomus Vieilloti, G.R. Grey.: J. Gould & H.C. Richter, del et lith.: Walter, imp. Collection: Hill Ornithology Collection Date: 1850 Format: Image Creator: Gould, John (British painter, ornithologist, 1804-1881), ... Engraver: H. C. Richter
