Crikey! Sorry to see that, it looks like the bird poo has etched in to the clear coat and / or paint. Hopefully it's not too deep and a machine polish could bring the marks out. If you haven't access to a machine or know anyone that has one and is willing to give you a hand, something like Sonus paintwork restore or one of the GTechinc products for this sort of thing may be worth a try by hand.
Once you get it right, you could do with sealing the paint with something ike Carlack 68 NSC to help prevent this sort of thing happening again, obviously if you want to wax over the top of the NSC to provide further protection that's up to you but certainly get some sealant on.