They do look like swans for sure. And they have to camouflage themselves as well while hiding from predators in the vegetation. But there are geese too, oh and ducks Mallards, common and familiar in NorthAmerica.
Ha! So just like the cold Polar air, the Kanadagås can go south in North America or the Eurasian continent. I wonder if they call them Kanadagås or equivalent in Siberia?
RE: Oslo downtown #1