15:41 Saturday 24 December 2016 JST
We are at Swan Lake in Niigata, where swans apparently gather for the evenings in winter. There are none here now.
17:00 Saturday 24 December 2016 JST
Several came back starting around 4:30pm, right when the sky was getting dark.
But even cooler than seeing swans flying was seeing the window through which we could see them! 1.7m tall by 12 meters wide. One pane of glass. Thanks to the lady for actually getting out a tape measure to measure its length and height.