“New distributional records for the Black-and-chestnut Eagle (Spizaetus isidori) and the Black Hawk-Eagle (S. tyrannus) for Colombia, with notes for field identification: New distributional records for the Black-and-chestnut Eagle (Spizaetus isidori) and the Black Hawk-Eagle (S. tyrannus) for Colombia, with notes for field identification” (2021) Ornitología Colombiana, (7), pp. 66–74. Available at: https://revistas.ornitologiacolombiana.com/index.php/roc/article/view/189 (Accessed: 14 November 2026).