I happened onto these two swans a-swimming in the Nett Lake River after a duck hunt last Friday. I’m calling them trumpeter swans. Tundra swans are similar but usually have a small yellow patch just behind their bills. The swans swam calmly up the river before eventually flying. We saw other pairs of swans — or this same pair more than once — while we were duck hunting that day.
Here’s one more photo of one of the swans in flight.