I always wipe the bird crap off soon as,but ive found that some has left marks on the roof and quarter,whats best way to get rid,as ive tried t-cut,g3 and polishes but they not do the job.

Also how much does it cost to detail a car? say to get rid of faint scratches/swirl marks etc?
Oh and stone chips........i always polish them in with some dark wax/polish to hide them,anything else i could do without having the bonnet painted theres around5/6 on the bonnet and a few on bumper