Taxon profile
Images
Links and literature
AOU Checklist of North and Middle American Birds 2013 [http://checklist.aou.org/], North American Classification Committee (NACC) [as Aythya americana]Data retrieved on: 26 April 2013
Bird Life 5.1 [474]
Bird Life [http://www.birdlife.org] [as Aythya americana (Eyton, 1838)]
Data retrieved on: 26 April 2013
Fauna Europaea 2.4 [96516]
de Jong, Y.S.D.M. (ed.): Fauna Europaea [http://www.faunaeur.org] [as Aythya americana (Eyton, 1838)]
Data retrieved on: 9 March 2012
Gill F. & Donsker D.: IOC World Bird List 7.3 [http://www.worldbirdnames.org/] [as Aythya americana (Eyton, 1838)]Data retrieved on: 16 November 2017
IUCN Red List of Threatened Species 2013.2 [22680367]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [as Aythya americana (Eyton, 1838)]
Data retrieved on: 27 January 2014
Hudec K. et al. (2003): Soustava a české názvosloví ptáků světa, Muzeum Komenského v Přerově. 462 pp. [as Aythya americana (Eyton, 1838)] Crochet P.-A., Joynt G.: AERC list of Western Palearctic birds December 2012 [http://www.aerc.eu/tac.html] [as Aythya americana]Data retrieved on: 26 April 2013
Fenneman J. (2007): British Columbia Bird Checklist [as Aythya americana]
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 [http://www.birds.cornell.edu/clementsche...], Cornell Lab of Ornithology [as Aythya americana]Data retrieved on: 7 April 2013
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