Description officielle d’une nouvelle espèce de petit-duc sur l’île de Principe (São Tomé-et-Príncipe)

• Birds of Western Africa seconde édition (2014) de Nik Borrow et Ron Demey 
• The Birds of Sao Tome e Principe As Aves de Sao Tome e Principe: A Photo Guide (2009) de Fabio Olmos By et A.P. Leventis
• The Birds of Sao Tome and Principe with Annobon: Islands of the Gulf of Guinea (2006) de Peter Jones et Alan Tye
• Petit Futé Gabon, São Tomé et Principe (2021-2021) de Petit Futé

Sources

• Martim Melo, Bárbara Freitas, Philippe Verbelen, Sátiro R. da Costa, Hugo Pereira, Jérôme Fuchs, George Sangster, Marco N. Correia,
  Ricardo F. de Lima et Angelica Crottini (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. Volume : 1126. Pages : 1–54. zookeys.pensoft.net/article/87635/list/18/
• José Luis Copete (2016). A Scops-owl (Otus) discovered in the forests of Príncipe Island (Gulf of Guinea). Handbook of the Birds of the World. Date : 21/07. www.hbw.com
• Martim Melo et Martin Dallimer (2009). Is there an undiscovered endemic scops owl Otus sp. on Príncipe Island? Malimbus. Volume : 31. Pages : 109-115. http://malimbus.free.fr/articles/V31/31109115.pdf