These are not recent photos but were taken in February two years ago. I felt it worth posting them as it was a rare sighting (for me) of a hibernating comma butterfly. It is head down on a tree trunk and matches the peeling birch bark perfectly. The comma gets its name from the small c-shaped white mark on the underside of the wings as seen well here (hence also its latin name Polygonia c-album). The comma is unusual in overwintering as an adult. It hibernates from November to April.
This is for Sophie who thought a hibernating comma must be an exotic punctuation mark!