Taxon - Odkazy a literatura
Bird Life 5.1 [5785]
Bird Life [http://www.birdlife.org] [jako Corvus levaillantii Lesson, 1831]
Datum citace: 26. duben 2013
IUCN Red List of Threatened Species 2013.2 [22706024]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [jako Corvus levaillantii Lesson, 1831]
Datum citace: 27. leden 2014
Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [jako Corvus levaillantii Lesson, R, 1831]Datum citace: 5. prosinec 2021
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [jako Corvus macrorhynchos levaillantii]Datum citace: 7. duben 2013