This species has an extremely large range in both the breeding season and in winter, and an extremely large population. The population was not thought to be declining sufficiently rapidly to approach the threshold for Vulnerable under the population size reduction criterion. However new information suggests the population has declined rapidly across the majority of the range, and it has therefore been uplisted to Vulnerable. Although the species might be expected to benefit from a reduction in eutrophication, this does not appear to have been the case.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
Cramp, S.; Perrins, C. M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
42-49 cm, wingspan 72-82 cm (Snow and Perrins 1998). Breeding male has rufous-chestnut head, blackish breast, upper mantle, undertail-coverts, rump and tail, silver-grey flight feathers and almost white underwing, grey body, dark grey bill with black tip and bright orange-red eyes (Carboneras and Kirwan 2014). Eclipse plumage similar to adult female. Female has dull brown head with pale grey eyestripe, throat, lores and cheeks. Body greyish-brown, darker above. Wings generally browner than those of male. Bill dull grey/black with black tip and eyes brown. Juvenile resembles adult female. Similar species Redhead A. americana very similar but male A. ferina has red rather than yellow iris, different pattern on bill, female A. ferina has different bill colour and whiter flanks. Male A. ferina smaller than Canvasback A. valisineria, which is paler with blackish wash to head, flatter forehead and much longer, all-dark bill (Carboneras and Kirwan 2014). Voice Male generally silent but makes wheezy whistles in display, female makes mainly monosyllabic calls (Carboneras and Kirwan 2014).
Albrecht, T.; Horák, D.; Kreisinger, J.; Weidinger, K.; Klvana, P.; Michot, T. C. 2006. Factors Determining Pochard Nest Predation Along a Wetland Gradient. Journal of Wildlife Management 70(3): 784-791.
Balmaki, B.; Barati, A. 2006. Harvesting status of migratory waterfowl in northern Iran: a case study from Gilan Province. In: Boere, G.; Galbraith, C., Stroud, D. (ed.), Waterbirds around the world, pp. 868-869. The Stationary Office, Edinburgh, UK.
Bartoszewicz, M.; Zalewski, A. 2003. American mink, Mustela vison diet and predation on waterfowl in the Slonsk Reserve, western Poland. Folia Zoologica 52(3): 225-238.
BirdLife International. 2015. European Red List of Birds. Office for Official Publications of the European Communities, Luxembourg.
Brazil, M. 2009. Birds of East Asia: eastern China, Taiwan, Korea, Japan, eastern Russia. Christopher Helm, London.
Brown, L.H., Urban, E.K. and Newman, K. 1982. The Birds of Africa, Volume I. Academic Press, London.
Carboneras, C. and Kirwan, G.M. 2014. Common Pochard (Aythya ferina). In: J. del Hoyo, A. Elliott, J. Sargatal, D.A. Christie and E. de Juana (eds), Handbook of the Birds of the World Alive, Lynx Edicions, Barcelona.
del Hoyo, J.; Elliot, A.; Sargatal, J. 1992. Handbook of the Birds of the World, vol. 1: Ostrich to Ducks. Lynx Edicions, Barcelona, Spain.
Delany, S.; Scott, D. 2006. Waterbird population estimates. Wetlands International, Wageningen, The Netherlands.
Evans, D.M. and Day, K.R. 2002. Hunting disturbance on a large shallow lake: the effectiveness of waterfowl refuges. Ibis 144(1): 2-8.
Fox, A. D.; Jones, T. A.; Singleton, R.; Agnew, A. D. Q. 1994. Food supply and the effects of recreational disturbance on the abundance and distribution of wintering Pochard on a gravel pit complex in southern Britain. Hydrobiologia 279/280: 253-262.
Giles, N. 1994. Tufted Duck (Aythya fuligula) habitat use and brood survival increases after fish removal from gravel pit lakes. Hydrobiologia 279/280: 387-392.
Gudmundsson, F. 1979. The past status and exploitation of the Myvatn waterfowl populations. Oikos 32(1-2): 232-249.
IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Available at: www.iucnredlist.org. (Accessed: 19 November 2015).
Johnsgard, P.A. 1978. Ducks, geese and swans of the World. University of Nebraska Press, Lincoln and London.
Kear, J. 2005. Ducks, geese and swans volume 2: species accounts (Cairina to Mergus). Oxford University Press, Oxford, U.K.
Madge, S. and Burn, H. 1988. Wildfowl. Christopher Helm, London.
Marsden, S. J. 2000. Impact of Disturbance on Waterfowl Wintering in a UK Dockland Redevelopment Area. Environmental Management 26(2): 207-213.
Marsden, S. J.; Bellamy, G. S. 2000. Microhabitat characteristics of feeding sites used by diving duck Aythya wintering on the grossly polluted Manchester Ship Canal, UK. Environmental Conservation 27(3): 278-283.
Mateo, R., Belliure, J., Dolz, J.C., Aguilar-Serrano, J.M. and Guitart, R. 1998. High prevalences of lead poisoning in wintering waterfowl in Spain. Archives of Environmental Contamination and Toxicology 35: 342-347.
Melville, D. S.; Shortridge, K. F. 2006. Migratory waterbirds and avian influenza in the East Asian-Australasian Flyway with particular reference to the 2003-2004 H5N1 outbreak. In: Boere, G.; Galbraith, C., Stroud, D. (ed.), Waterbirds around the world, pp. 432-438. The Stationary Office, Edinburgh, UK.
Nagy, S., Flink, S. and Langendoen, T. 2014. Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
Quan, R. C.; Wen, W.; Yang, X. 2002. Effects of human activities on migratory waterbirds at Lashihai Lake, China. Biological Conservation 108: 273-279.
Scott, D. A.; Rose, P. M. 1996. Atlas of Anatidae populations in Africa and western Eurasia. Wetlands International, Wageningen, Netherlands.
Snow, D.W. and Perrins, C.M. 1998. The Birds of the Western Palearctic, Volume 1: Non-Passerines. Oxford University Press, Oxford.
Sorrenti, M., Carnacina, L., Radice, D. and Costato, A. 2006. Duck harvest in the Po delta, Italy. In: G. Boere, C. Galbraith and D. Stroud (eds), Waterbirds around the world, pp. 864-865. The Stationary Office, Edinburgh, U.K.
Wetlands International. 2012. Waterbird Population Estimates: 5th Edition.
Further web sources of information
Detailed regional assessment and species account from the European Red List of Birds (BirdLife International, 2015)
Text account compilers
Ashpole, J, Burfield, I., Butchart, S., Ekstrom, J., Malpas, L., Pople, R., Wheatley, H. & Wright, L
Choudhury, A., Nagy, S., Langendoen, T., Heim, W., Baccetti, N., Petkov, N., Vogrin, M., Sorrenti, M., Virkkala, R., Raudonikis, L., Singh, R.K.B., Vyas, V., Hearn, R., Balachandran, S., Caizergues, A., Kasambe, R., Ming, M., Ushiyama, K., Solovyeva, D., Chowdhury, S., Moores, N. & Gombobaatar, S.
IUCN Red List evaluators
BirdLife International (2015) Species factsheet: Aythya ferina. Downloaded from http://www.birdlife.org on 30/11/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 30/11/2015.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Family||Anatidae (Ducks, Geese, Swans)|
|Species name author||(Linnaeus, 1758)|
|Population size||mature individuals|
|Distribution size (breeding/resident)||11,900,000 km2|
|Links to further information|
- Additional Information on this species|
- 2015 European Red List assessment