Goodbye

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Oh I thought pigeons were aggressive cus once a pigeon flew into my balcony and started flapping its wings really really fast , like it wanted to start start a fight or something.

Well certain breeds can be a little aggressive. Feral pigeons could be occasionally aggressive but a lot of the domestic show breeds are pretty friendly and without knowing any better you probably would never even guess that they are a pigeon.
When a pigeon is being aggressive or territorial though they don't flap their wings either they inflate their crop, fluff up their feathers, and lunge towards but they don't actually touch you normally.