Hughes, J. M. (2022). Pearly-breasted Cuckoo (Coccyzus euleri), version 2.0. In Birds of the World (S. M. Billerman, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.pebcuc1.02 retrieved September 25, 2022
Fernandes-Ferreira, Hugo (2012). "Hunting, use and conservation of birds in Northeast Brazil". Biodivers Conserv. 21: 221–244. doi:10.1007/s10531-011-0179-9. S2CID16399532.
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022
semanticscholar.org
api.semanticscholar.org
Fernandes-Ferreira, Hugo (2012). "Hunting, use and conservation of birds in Northeast Brazil". Biodivers Conserv. 21: 221–244. doi:10.1007/s10531-011-0179-9. S2CID16399532.