Male Common Goldeneye swimming amongst ice floes in Whitby Harbour
Although swimming in icy water looks frigid to us humans, common goldeneyes often stay as far north in winter as they possibly can.
Swimming to and fro, occasionally diving
It all depends on whether they can find open water as they dive for their food: aquatic invertebrates, vegetation and small fish.
Some spend the winter in marine waters, but quite a few visit the Great Lakes until the ice melts further north..
I am connecting to Stewart M's Wild Bird Wednesday HERE