I think the feral pigeons history has changed over the years, i think now they are mostly down from the racing pigeon, just look how they did a few years ago and look at them now, more like racing birds now than they have ever been, this is caused by the many losses of racers going wild and joining the ferals and for years been breeding into them, before you just looked at a feral and new, now you look to see if its got a ring on,