Jaramillo, A. and G. M. Kirwan (2021). Black-and-rufous Warbling Finch (Poospiza nigrorufa), version 1.1. 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.barwaf1.01.1
