'Christmas Card' by Karl Williams. Many of you will be familiar with the image below, taken last winter, of a mute swan trudging across the frozen surface of Loch Ard. A larger, and better, version of this can be seen at my website karlwi.
Swans form monogamous pair bonds that last for a lifetime. Their loyalty to their mates is so storied that the image of two swans swimming with their necks entwined in the shape of a heart has become a nearly universal symbol of love.