Robbin droppings? i live in a TH & our cars are getting hit hard with bird droppings?

i cannot use a gun,because of where i live.is there any other way to get rid of these robbins from perching on our cars %26amp; leaving their droppings all over them.i really don't want to harm them,just get them to go somewhere else.thanksRobbin droppings? i live in a TH %26amp; our cars are getting hit hard with bird droppings?
If you have many robins around it is because your surrounding flora suits them. You cannot shoot them out of existence because others will inevitably take their place so it is pointless. Life would be less enriched without robins and their song, do you really want to kill them? The best thing to do it park your cars under a carport or something or else keep the polish up to them so any droppings will come off very easily with a quick squirt of a water hose.