BioStor
 | January 12, 1864 J E Gray (1864) Proceedings of The Zoological Society of London 1864: 1-17 |
 | List of Birds recently collected by Dr. Kirk in Eastern Africa (1881) Proceedings of The Zoological Society 1881: 561-602 |
 | Type-specimens of birds in the British Museum (Natural History). Vol. 1 Non-passerines Rachel L M Warren (1966) |