This potentially tragic accident is a striking echo of the traditional song 'Polly (or Molly) Vaughn (Bawn)', number 166 in Steve Roud's Folksong Index. In the song the incident is usually blamed on poor light or weather conditions. Polly pulls her apron over her, sometimes to keep off the rain. Her lover is out hunting and shoots her, believing her to be a swan. In Harry Cox's charming Norfolk phrase, 'He shot his own truelove in the room of a swan'. The lover is appalled at what he has done. His relatives tell him not to run away but to stand trial, as no punishment will follow for his terrible mistake. Here's a version recorded in 1952 in Arkansas that tells the story up to this point.
Older versions of the song from the British Isles don't stop there. When the lover gets to court, Polly's ghost intercedes on his behalf. She appears and tells the court that this was an accident. This is a nice embodiment of the belief that those who have died untimely deaths are more likely to become ghosts, and will intervene to finish some unresolved business before they can rest.
I've just been learning Harry Cox's fine version of this song, 'The Fowler', and will be singing it at the Spectres at the Feast event in a couple of weeks.