BioStor
 | On the races of Erythropygia leucophrys (1929) Bulletin of The British Ornithologists' Club 49: 62-63 |
 | Review of the subspecies of the African scrub-robin, Erythropygia leucophrys (Vieillot) W W Bowen (1934) Proceedings of The Biological Society of Washington 47: 157-167 |
 | Further Data on African Parasitic Cuckoos Herbert Friedmann (1956) Proceedings of The United States National Museum 106: 377-408 |
 | A check list of the land and freshwater birds of the western Cape Province J M Winterbottom (1968) Annals of The South African Museum 53: 1-276 |