Two friends from Italy were visiting this past week. One of the things they noticed more than anything else was the pigeons. Beside almost every major mosque in Istanbul, one can find men and women selling birdseed. There simply isn't that kind of micro-infrastructure in Italy -- and to the best that I remember, the roosting of pigeons in certain public or well-trafficked areas is quite often discouraged. They asked me why it was that pigeons seemed so well-loved here and I didn't have a good answer. Perhaps because bird droppings are taken by many to be a sign of good luck.
In practice, I can't necessarily vouch that I've found myself particularly blessed by the birds, but it is some small consolation when I have to wipe a smear off my shirt.