Amaral, Fabio Sarubbi Raposo Do; Silveira, Luís Fábio; Whitney, Bret M. (2007). "New Localities for the Black-Faced Hawk (Leucopternis melanops) South of the Amazon River and Description of the Immature Plumage of the White-Browed Hawk (Leucopternis kuhli)". The Wilson Journal of Ornithology. 119 (3): 450–454. doi:10.1676/06-034.1. JSTOR20456030. S2CID86429176.
Shrum, Peggy L.; Bowerman, William W.; Olaechea, Diego Garcia; Amable, Richard (2011). "More Records of Sympatry of Black-faced Hawk (Leucopternis melanops) and White-browed Hawk (L. Kuhli) in Madre de Dios, Peru". Journal of Raptor Research. 45: 104–105. doi:10.3356/JRR-10-47.1. S2CID85080889.
Amaral, Fabio Sarubbi Raposo Do; Silveira, Luís Fábio; Whitney, Bret M. (2007). "New Localities for the Black-Faced Hawk (Leucopternis melanops) South of the Amazon River and Description of the Immature Plumage of the White-Browed Hawk (Leucopternis kuhli)". The Wilson Journal of Ornithology. 119 (3): 450–454. doi:10.1676/06-034.1. JSTOR20456030. S2CID86429176.
Amaral, Fabio Sarubbi Raposo Do; Silveira, Luís Fábio; Whitney, Bret M. (2007). "New Localities for the Black-Faced Hawk (Leucopternis melanops) South of the Amazon River and Description of the Immature Plumage of the White-Browed Hawk (Leucopternis kuhli)". The Wilson Journal of Ornithology. 119 (3): 450–454. doi:10.1676/06-034.1. JSTOR20456030. S2CID86429176.
Shrum, Peggy L.; Bowerman, William W.; Olaechea, Diego Garcia; Amable, Richard (2011). "More Records of Sympatry of Black-faced Hawk (Leucopternis melanops) and White-browed Hawk (L. Kuhli) in Madre de Dios, Peru". Journal of Raptor Research. 45: 104–105. doi:10.3356/JRR-10-47.1. S2CID85080889.