Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 15, 2019
doi.org
Whitney, B. (2020). Chestnut-crowned Gnateater (Conopophaga castaneiceps), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.chcgna1.01 retrieved May 7, 2021
Carriker, M. A. Jr. (1933). "Descriptions of New Birds from Peru, with Notes on Other Little-Known Species". Proceedings of the Academy of Natural Sciences of Philadelphia. 85: 13–15. JSTOR4064167.