Not only that. They live in the stations, because why not? Perfectly protected spaces. Except if flooded. That's not exactly wanted here, because of the corros

Not only that. They live in the stations, because why not? Perfectly protected spaces. Except if flooded. That's not exactly wanted here, because of the corrosive bird shit, possible interference with information displays, signalling systems and/or overhead wire/third rail, health concerns, and so on. But somehow they manage to evade or adapt all countermeasures so far. Mostly pigeons/doves, the 'rats of the air', but also some larger seagulls. Funny when you stand on the platform, bored, watching some talking heads yabbering on some projected screen, waiting for a few minutes until the next train. And then suddenly one of the larger seagulls serenely gliding in out of the tunnel along the track, against the direction, scanning the platform. Like WTF!?