Bibliografía:
Berg, R. 1999. "Corvus corax" (On-line), Animal Diversity Web. Accessed July 01, 2022 at https://animaldiversity.org/accounts/Corvus_corax/
Reyero J.M. et al. (S.F.). Cuervo grande (Corvus corax). Junio 30, 2022, de SEO/BirdLife Sitio web: https://seo.org/ave/cuervo/
BirdLife International. 2017. Corvus corax (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22706068A113271893. https://dx.doi.org/10.2305/IUCN.UK.2017-1.RLTS.T22706068A113271893.en. Accessed on 01 July 2022.