Bird droppings messed up your car's paint job, there are steps you can take yourself instead of spending a fortune to repaint your car or have a professional buff out the damage.

Bird poop has acidity levels between 3.5 and 4.5 pH and will damage your cars clear coat in just a few hours and sometimes eat right down to the metal if left unattended.  If just your clear coat has damage, there are a few products you can try at home.

Presta Cutting Cream is very good and will cost you under $20 for an 8oz bottle.  Also Meguiar's Scratchx 2.0 is good for minor etching and is available wherever car care products are sold.

If your etching is really bad, you may need to use several different products as in this video.

Bird droppings are worse on black cars but cause damage to all paint jobs if unattended.  If your car is going to be parked for long periods, try to park indoors if possible.