Literature

• del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. [link]

Literature references linked to higher taxa

• eBird: An online database of bird distribution and abundance. eBird, Ithaca, New York. [link] (Aves)
• Gill, F & D. Donsker (eds) 2017. IOC World Bird List v7.1. [link] (Estrildidae)