There is no philosophy behind a bird pooping on a vehicle. So the only thing it can mean is that the owner may want to wash the window.
it is seeing itself and thinks it is another bird it poops allover your car while it is doing this.
It means you have a ladybird on your car window.
Soap and water.
it dies usually.....
nothing, that the bird died?
The bird had to relieve itself right as it was near or on your car. I don't think it means much more than that :) .
Apple computers
Do you mean defrost, as in a car window. Maybe some reference to defrosting the rear window with a button inside the car and not having to get out in the cold a scrape, scrape, scrape so you can see behind you while driving.
the bird needed a big one
you parked near a tree and your window was open
You need to wash it.