Very occasionally we get the odd silly pigeon that flies into the attic window. I've never seen them hurt they just fly off and I imagine teeny little cartoon pigeons flying around their heads while they are dazed.
This one must have been for an essential oil aromatherapy massage beforehand, as he left a perfect imprint on the window!
Can see his whole shape: eye, head, neck, body, wings and legs - bless him!