The chickadee had
An unintended meeting
With a pane of glass

The saddest part of the story was that when I got up to look out the window to see what had caused the “thunk” sound, I looked down and saw a little live chickadee sitting next to the body of the unfortunate one, almost as if it were waiting for the dead chickadee to rise up and fly away. It was strangely poignant.
I’ll probably delete this in the morning, eagerly awaiting the flight of the chickadee.