BioStor
 | May 2, 1871 Viscount Walden (1871) Proceedings of The Zoological Society of London 1871: 325-477 |
 | On little-known and undescribed eggs from the Kakurnoor (1894) Novitates Zoologicae 1: 669-673 |
 | Descriptions of new subspecies of Birds from Palaearctic Asia, together with remarks on their geographical distribution (1904) Bulletin of The British Ornithologists' Club 14: 42-46 |
 | 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 |