Typically this time of year, our lake is home to several hundred Trumpeter swans. We've noticed over the past few weeks that the swans are not here in the evening. We've got a flock of Canada geese hanging around, but no Trumpeters.
We suspect that the snow storms over the Christmas holidays and the subsequent freezing of a large portion of the lake surface made the swans depart for other accommodations. I saw a few this past weekend in the fields not too far from the house so I know some are still around, just not on our lake.
We miss the "music" they brought to the neighborhood as they returned each night to rest.