I wrote to the driver of the Jeep Cherokee parked in front of me at the grocery store this morning, but fortunately never had to deliver:
Hoping the driver would return to their vehicle before I slipped my message under their wiper blade to avoid possible self incrimination, I looked up from my yellow pad as a red-haired, middle-aged woman walked up to the driver's side door. I stepped out of my car with a proud 'Excuse me, ma'am' and relayed my observation. She paused with a smirk and said "That must be the one I hit this morning, I'll deal with it when I get home" and drove away with Lucky, the wavering white feathers patched together with raspberry jam.