Taxon - Links and literature
AOU Checklist of North and Middle American Birds 2013 [http://checklist.aou.org/], North American Classification Committee (NACC) [as Rhynchophanes mccownii]Data retrieved on: 26 April 2013
Bird Life 3 [22721025]
Bird Life [http://www.birdlife.org] [as Rhynchophanes mccownii (Lawrence, 1851)]
Data retrieved on: 23 November 2018
del Hoyo J., Elliott A., Sargatal J., Christie D.A. & de Juana E. (eds.).: Handbook of the Birds of the World (HBW) Alive [https://www.hbw.com/], Lynx Edicions, Barcelona [as Rhynchophanes mccownii Lawrence, 1851]Data retrieved on: 27 November 2018
Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [as Rhynchophanes mccownii (Lawrence, 1851)]Data retrieved on: 4 December 2021
IUCN Red List of Threatened Species 2024-1 [22721025]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [as Rhynchophanes mccownii (Lawrence, 1851)]
Data retrieved on: 29 January 2024
Hudec K. et al. (2003): Soustava a české názvosloví ptáků světa, Muzeum Komenského v Přerově. 462 pp. [as Calcarius mccownii (Lawrence, 1851)]
Fenneman J. (2007): British Columbia Bird Checklist [as Calcarius mccownii]
Data retrieved on: 25 January 2009
Data retrieved on: 25 January 2009
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [as Rhynchophanes mccownii]Data retrieved on: 7 April 2013