This may ruffle some feathers with some old school detailers who swear by wax but it is, what it is.
"Your biggest enemy in the fight against bird droppings is wax"

Todays most popular automotive waxes are based on a tree by product.

The problem is, birds eat from trees and create a acid in their digestive system strong enough to liquidfy all of the seeds, leaves and twigs it injests along with incects.

This acid will also liquify car wax as the acids remain active in the droppings as they dry.

When the acid becomes inactive, the droppings harden, dry and bond with the car wax.

The reason they are so hard to remove is because they are imbeded in the wax.

The only sure way to remove them is to remove ALL OF THE WAX.

The etchings from the acid will not bond with acrylic based automotive paint, only wax.

The etchings are not markings in the paint they are markings in the wax.

Abrasive solutions to removing bird etchings are damaging to the paint. It is overkill
The most agressive non abrasive method I know to cut wax is hot water and dishwashing liquid. Once you remove the wax the etchings will follow.

The catch 22 is that your paint needs some protection from the elements and wax is the most common response. Now you are right back where you started, vunerable to bird droppings.

The thicker the coating or the harder the wax, the more difficulty you will have in removing bird droppings the their etchings.

There are new products that do not contain any natural wax. These products will not react to the acid in bird droppings because they have a different base.

These products are DIY and require no special knowledge to apply.

Look for products that are LIQUID and NON ABRASIVE, (this leaves out all forms of polish.) and require a minimum amount of hand buffing. A smooth surface will make any paint protection last longer and work better.

Use a paint sealant instead of wax.

I am not clear on just what sealants are made out of or what type of maintainance they require.

Do you put a protectant on the sealer or do you leave it bare?

I have heard that wax will make a some sealers fail by smothering it and drying it out.

Is this a DIY job?
Do you re-apply the sealer each time you wash the car?
How long does it last?

How easy is it to take off?
Is this anything like a clear coat?

The sealer could be a good alternative if it is not too complicated to apply and maintain.

Klasse makes a sealant and t will last for atleast six months compared to two months for a carnauba wax. It goes on like water and wipes off like water. I use Wolfgang 3.0 that is like a wax, but I let it cure for a day then apply a coat of carnauba wax on top of it:

http://www.autogeek.net/qude101.html

Good thing my car is always protected, by a layer of dirt.

Putting wax on top of a sealent will not stop bird droppings from sticking to the car. The bird droppings will have the same effect on the wax.

it makes alot of sense and has been debated for a while now but this link is from the Detailing Guru at autogeek it has alot of info that can answer the questions.

http://www.autogeekonline.net/forum/...tch-paint.html

Nowadays, it is best to use Ceramic coatings as this is repellant on bird droppings.

Birds confuse me. Lol. They can drop their poop anywhere but why do they love to do it on cars.

It's a game for them. It's like target practice....

I have a 50 by 50 barn that I park a couple tractors in, there are bird droppings on my tractors, but, nowhere on the floor of the barn.... Riddle me that one will ya.