yes they fly for fun

i used to work in a warehouse that had pigeons and doves inside flying around, i'm a fork-lift driver by the way, when we drove in and out of sections to pick or place an item the birds would fly within inchs of the trucks, i believed they were playing the equivalent of the great kids game 'chicken' where you try to run accross a road infront of a car.

stupid game i know, but alot of kids are stupid.