"On vacation in London my wife and I were waiting for a train in a tube station. Two trains arrived at the station before ours showed up. As a native New Yorker, I was comforted to see that pigeons live in subway stations everywhere.
The first train pulls into the station and the doors open. As people enter and exit the train, one pigeon flutters down from the ceiling, lands on the platform and calmly walks onto the train like he’s off to work or something. My wife and I laugh about this a little as the doors closed and the train pulls away from the station.
The second train pulls into the station, the doors open, and people shuffle out. After a moment a different pigeon walks out of this train and then flutters up to spot vacated by the first pigeon.
Anyway, seems like London pigeons have the tube pretty much figured out."