Taxon - Odkazy a literatura
Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [jako Ketupa Lesson, R, 1830]Datum citace: 22. duben 2021
The Interim Register of Marine and Nonmarine Genera [1054918]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Ketupa Lesson, 1830]
Datum citace: 30. listopad 2019