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. 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
3. [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
4. 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