Sornoza-Molina, Francisco; Freile, Juan F.; Nilsson, Jonas; Krabbe, Niels; Bonaccorso, Elisa (2018-09-26). ”A striking, critically endangered, new species of hillstar (Trochilidae: Oreotrochilus) from the southwestern Andes of Ecuador” (på amerikansk engelska). The Auk 135 (4): sid. 1146–1171. doi:10.1642/auk-18-58.1. ISSN0004-8038.
Sornoza-Molina, Francisco; Freile, Juan F.; Nilsson, Jonas; Krabbe, Niels; Bonaccorso, Elisa (2018-09-26). ”A striking, critically endangered, new species of hillstar (Trochilidae: Oreotrochilus) from the southwestern Andes of Ecuador” (på amerikansk engelska). The Auk 135 (4): sid. 1146–1171. doi:10.1642/auk-18-58.1. ISSN0004-8038.