This video from Canada says about itself:
Common Goldeneye – Bucephala clangula
These Common Goldeneye ducks are wintering in Lake Ontario. Around late March to early April they will begin returning to their northern breeding grounds across Canada and Alaska. Common Goldeneyes can also be found in northern Europe and Asia.
From Wildlife Extra:
Climate changes shift wintering ranges of waterbirds
Waterbirds moving north – More in Finland and Sweden
May 2013. Migratory waterbirds have shifted their wintering areas north-eastwards due to climate change in Europe, according to a group of scientists including Richard Hearn of the Wildfowl & Wetlands Trust (WWT). Their new study found a strong link between changes in the numbers of goldeneyes, tufted ducks and goosanders wintering across northern Europe and changes in temperature in early winter.
Large rise in Finland and Sweden
In Finland and Sweden, the mid-winter numbers of these three species are more than 130,000 individuals higher than three decades ago. Correspondingly, on the southern edge of the distribution in France, Ireland and Switzerland, numbers have dropped by nearly 120,000 individuals. In several southern countries wintering numbers have halved.
Richard Hearn, WWT’s Head of Species Monitoring and a contributor to the study, said: “Our world is changing rapidly and conservation tools need to be flexible so they can respond to that challenge. This means more monitoring, to keep track of bird populations that are, in some cases, changing exponentially. It also means maintaining a coherent network of protected areas throughout Europe, and altering their management in response to the changing mix of wildlife that uses them.”
“Studies like this are critical to making governments aware of their shifting responsibilities and helping them plan for the future.”
Tufted ducks and goldeneyes in Finland
Aleksi Lehikoinen, Curator at the Finnish Museum of Natural History and lead author of the study, said: “In Finland, the change has been strongest in tufted ducks and goldeneyes, whose numbers have increased ten-fold. Waterbird numbers are connected with the early winter temperature, which in south Finland increased by about 3.8 degrees between 1980 and 2010.”
This may have implications for their conservation, because birds are making less use of the protected areas that were designated to protect them. The shifts in the birds’ ranges may also affect the impact of hunting, as possibilities increase in the north and decrease them in the south, altering potential bag sizes.
The research is based on counts from the International Waterbird Census and the results have been published in Global Change Biology.
- Breaking News: Migratory birds move wintering area (crosbyherald.co.uk)
- Climate shifts birds’ winter homes (bbc.co.uk)
- Managing freshwater wisely (sciencealert.com.au)
- Loss and Degradation of Natural Habitats Threaten Migratory Birds, Pushing Species towards Extinction – World Migratory Bird Day 2013 Highlights Importance of Ecological Networks for Migratory Birds – Need for a Greater International Response (appablog.wordpress.com)
- ‘Red List’ introduced to protect at risk ecosystems (abc.net.au)
- Picture of the Day: First Flight (twistedsifter.com)