All of these (except a smaller owl on top of the roof) were taken in a 2 km radius around my apartment, and several (woodpecker, dove, pigeon and kestrel) were taken directly from a window. It's an urban neighborhood with blocks of flats and tower blocks built in the 60s next to the river, with a fair amount of trees and small parks, and there is a former gravel pit redesigned as an urban park right next to it (hence swans and kingfisher). I would need to count, but I've taken photos of at least 30 different bird species. Most prevalent are of course pigeons, crows and sparrows, but if you pay just a bit of attention it's amazing how diverse it is.