We seem to say that about any species that successfully adapts to live in the sprawling urban environment we creat John. Rock Doves, Foxes, Rats, Seagulls, all get labelled like this. On the other hand we try to “protect” the “pretty“ species under threat from our encroachment. Weird aren’t we. Personally I work on the premise that rock doves don’t hurt me so I don’t hurt them. Just remember that if we didn’t have developed health care and sanitation we would also be “riddled with disease”. I suppose that if rock doves, foxes, gulls etc collected their droppings together and dumped them in a river we’d say they were civilised