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2. Greeney, H. F. (2018). Antpittas and Gnateaters. Christopher Helm, London, UK.
3. IOC World Bird List 10.1
4. Dickinson, E. C., and L. Christidis (Editors) (2014). The Howard and Moore Complete Checklist of the Birds of the World. 4th edition. Volume 2: Passerines. Aves Press, Eastbourne, UK.
5. del Hoyo, J., and N. J. Collar (2016). HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions, Barcelona, Spain.