I've been laughing about the title all day, but bird doodoo is actually a serious problem for paint (even clear coats) and should be removed ASAP to prevent/avoid serious discoloration of the paint. It's best to "get-it while it's wet"
...and Wash Dat Chit OFF asap..with clean water and if neccesary some soap & water. Don't know what they eat, but paint sure doesn't like it!
