Atwood, J. L., S. B. Lerman, and A. J. Spencer (2020). White-lored Gnatcatcher (Polioptila albiloris), version 1.1. In Birds of the World (T. S. Schulenberg and B. K. Keeney, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.whlgna2.01.1 retrieved May 28, 2021