Taxon - Odkazy a literatura
Classification of the bird species of South America 17 March 2013 [jako Notharchus hyperrhynchus]Remsen J. V. Jr., Cadena C. D., Jaramillo A., Nores M., Pacheco J. F., Pérez-Emán J., Robbins M. B., Stiles F. G., Stotz D. F. and Zimmer K. J. (2002-2013): Classification of the bird species of South America [http://www.museum.lsu.edu/~Remsen/SACCBa...], American Ornithologists' Union
Datum citace: 26. duben 2013
Bird Life 5.1 [32188]
[jako Notharchus hyperrhynchus (P.L. Sclater, 1856)]Bird Life [http://www.birdlife.org]
Datum citace: 26. duben 2013
IUCN Red List of Threatened Species 2011.2 [160032188]
[jako Notharchus hyperrhynchus (P.L. Sclater, 1856)]IUCN Red List of Threatened Species [http://www.iucnredlist.org/]
Datum citace: 26. květen 2012
IOC World Bird List 3.3 [jako Notharchus hyperrhynchus (Sclater, PL, 1856)]Gill F. & Donsker D.: IOC World Bird List [http://www.worldbirdnames.org/]
Datum citace: 11. duben 2013
AOU Checklist of North and Middle American Birds 2013 [jako Notharchus hyperrhynchus]AOU Checklist of North and Middle American Birds [http://checklist.aou.org/], North American Classification Committee (NACC)
Datum citace: 26. 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 Notharchus hyperrhynchus]Datum citace: 7. duben 2013
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