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There was a nest in a tree in my yard last breeding season, when I got home and parked I had to wait until they were attacking some pedestrian walking by in the street before getting out of the car to open the garage door. One of them tried to swoop me.... when I was standing in my bedroom, watching it through the window!
A friend of mine had a whole herd of these turn up at 3pm each day, she used to feed them bread soaked in water, and they got scotty if they didn't get their bread. :D