Brooks, T. 1997. Threatened birds of Kenya 9: Taita Thrush. Kenya Birds 5(2): 102-104.
Brooks, T.; Lens, L.; Barnes, J.; Barnes, R.; Kageche Kihuria, J.; Wilder, C. 1998. The conservation status of the forest birds of the Taita Hills, Kenya. Bird Conservation International 8: 119-139.
Cheke, R. and Mann, C. 2016. Eastern Double-collared Sunbird (Cinnyris mediocris). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (ed.), Handbook of the Birds of the World Alive. (retrieved from http://www.hbw.com/node/60034 on 30 September 2016)., Lynx Edicions, Barcelona.
Goodman, S. M.; Stanley, W. T.; Newmark, W. D.; Howell, K. M. 1995. The Ambangulu Forest, West Usambara Mountains, Tanzania: a threatened Eastern Arc forest. Oryx 29: 212-214.
Mulwa, R. 1998. An ornithological survey of Mt Kasigau Forest with particular emphasis on Taita White-eye Zosterops poliogaster silvanus in Taita Tareta District, Kenya. In: Bytebier, B. (ed.), Taita Hills Biodiversity Project Annual Report Second Year (November 1997--October 1998), pp. Appendix 10.2.9. National Museums of Kenya, Nairobi.
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Recommended citation
BirdLife International (2024) Species factsheet: Usambara Double-collared Sunbird Cinnyris usambaricus. Downloaded from
https://datazone.birdlife.org/species/factsheet/usambara-double-collared-sunbird-cinnyris-usambaricus on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.