BioStor
 | Birds of the Galapagos Archipelago Robert Ridgway (1897) Proceedings of The United States National Museum 19: 459-670 |
 | Papers from the Hopkins Stanford Galapagos Expedition, 1898-1899. XVI. Birds Robert Evans Snodgrass and E Heller (1904) Proceedings of The Washington Academy of Sciences 5: 231-372 |
 | Generic names applied to birds during the years 1906 to 1915, inclusive, with additions and corrections to Waterhouse's "Index Generum Avium" Charles W Richmond (1917) Proceedings of The United States National Museum 53: 565-636 |
 | A new bird family (Geospizidae) from the Galapagos Islands Harry S Swarth (1929) Proceedings of the California Academy of Sciences 18: 29-43 |