The Mystery of the Pigeon by Morgan Mandel

I'm sitting at the Corner Bakery at the train station trying to fit in what writing I can before walking to the office.

As I'm typing on my computer, a pigeon walks by. Nothing unusual about seeing a pigeon, but what makes this sighting different is I'm indoors at the Ogilvie Transportation Centre, a huge building.

When you write a mystery, have fun by inserting objects or clues that don't quite fit right away, but later when you unravel the story, they make perfect sense.

I'm still trying to figure out the mystery of how this pigeon got in here. Maybe there's a hole in the ceiling. Maybe it got in through the swinging doors downstairs. Maybe it got in through the depot side, but then it would still have to fly inside the other swinging doors from the depot to the train station proper and down the hallway to the Corner Bakery.

This is one mystery I may never solve. Do you know of any real life mysteries you've never figured out?