Taxon - Odkazy a literatura
IOC World Bird List 3.3 [jako Tetrao urogallus aquitanicus Ingram, W, 1915]Gill F. & Donsker D.: IOC World Bird List [http://www.worldbirdnames.org/]
Datum citace: 11. duben 2013
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7 [http://www.birds.cornell.edu/clementsche...], Cornell Lab of Ornithology [jako Tetrao urogallus aquitanicus]Datum citace: 7. duben 2013
Copyright © 1999-2013 BioLib