Bird droppings survive shuttle launch.
Is this a good excuse to give up on washing my car? I think so. If NASA can’t get 'em off a shuttle after spraying with 300,000 gallons of water and putting them through an 18,000 mph, violently shaky ride into space, well, what chance do I have with my garden hose and an old rag?
Wow them’s pretty resiliant poops. Maybe they need to make the tiles for the next shuttle out of bird droppings.
Oh, yeah . . . the Audubon Society man says you can just hose it off . . . hose it off??? Ha!
Probably seagull.
It’s clear he doesn’t live in Florida. That stuff hits a superheated surface, dries in the sun, and it’s nearly permanent. I’ve got some on my windshield right now . . . it’s lasted through repeated applications of windshield washing fluid and three thunderstorms.
Mark my words . . . after re-entry, they’re going to find it’s etched the finish, too. 
Well, it depends how much you value your car.
Bird droppings can be corrosive, and can strip the paint off. If you don’t mind bird-dropping-shaped blobs of bare metal showing through the paintwork, that’s pretty much your affair.
Yeah, either make the tiles out of guano, or use it to stick the tiles on.
Amazing, but true.
Only thing more durable is squashed bugs on a hot windshield…
… especially if they are Love Bugs. Those damned things will seriously damage your paint job if they aren’t cleaned off pretty quick after splatting.
Sometimes those Atlantic Ocean people are so strange! 
You don’t get bird droppings in Washington?
Sure we do … get bird doo … but it never stops raining so the doo never dries.
I’ve heard an estimate that a single Canadian Goose poops 3lbs of crap per day.
I know where they can get a LOT of goose poop… we’re on the “flight path” between two cemeteries that have major goose populations. They are VERY good at hitting our white garage door, too.
i’m not so sure. that’s all i thought came out of washington. or maybe it’s from the bulls there. 
I’m just waiting for the mulberries to ripen. I’ll have to wash my car, then.
Yeah, I know, hell of a thing to come through one’s windshield.
Yeah… colourful… and when the bird-cherries ripen, we have to chase the pigeons off the flue of the gas fire, because they love dropping the stones down the flue - it makes a really loud rattley noise.
In the summer the Mallards come into the kitchen and try to pinch the food from the catfood dish. We have to chase them out gently, so they don’t crap all over the floor.
Love Bugs:
They swarm in clouds along roadways. They get lodged in radiators and clog them and make splattered messes all over windshields, which the wipers and washer just smear around. They take the finish right off car bumpers.
If they’re really thick, you have to put a fine mesh “surgical mask” like thing over your grillwork and petroleum jelly the windshield, press plastic wrap into it, duct tape the edges, and stop every few miles to replace the plastic. And wash your car every day to keep the guts that get through all this from taking the paint right off.
Some people spray Pam food spray on the bumper.
Please… tell me that’s a metric ruler!!!
The love bugs I’ve splatted (between Houston Texas and Louisianna, I-10) were just under half an inch long (for one of the pair).
I believe it is metric, yes. They’re little guys!
And, yes, for those of you who are wondering . . . that IS what they’re doing. That’s their natural state.
They sound like the caddisflies (mayflies) here. For a week or two the air is full of them, and then they all die, so that the ground crunches underfoot, the beaches are polluted, and it seems one is always re-washing the car.
As I recall, blue herons are reputed to have the most offensive droppings, for the smell (fish diet), for the fact that it kills trees the nests are in, and literally strips the paint off cars.
Remarkable bird, the blue heron. Beautiful plumage. Where have I heard this before? 
djm