RANDO, J. C.; ALCOVER, J. A.; OLSON, S. L.; PIEPER, H. A new species of extinct scops owl (Aves: Strigiformes: Strigidae: Otus) from São Miguel Island (Azores Archipelago, North Atlantic Ocean). Zootaxa, Auckland, New Zealand, v. 3647, n. 2, p. 343–357, 2013. DOI: 10.11646/zootaxa.3647.2.6. Disponível em: https://mapress.com/zt/article/view/zootaxa.3647.2.6. Acesso em: 22 apr. 2025.