Removing Bird Droppings from My Car

I use the lint from the dryer vent. Wet the lint then place it over the bird droppings. Let it sit are at least 5-10 minutes. Then wipe away the lint. This does not scratch the paint nhor the clear coat. In the past, the lint would be a good substitute when no paper towels were available. But I now prefer the lint because it is softer and made of cotton.