Melo Martim, Freitas Bárbara, Verbelen Philippe, da Costa Sátiro R., Pereira Hugo, Fuchs Jérôme, Sangster George, Correia Marco N., de Lima Ricardo F., et Crottini Angelica. 2022. « A new species of scops-owl (Aves, Strigiformes, Strigidae, Otus) from Príncipe Island (Gulf of Guinea, Africa) and novel insights into the systematic affinities within Otus ». ZooKeys 1126 (janvier): 1–54. doi:10.3897/zookeys.1126.87635.