Any recommendations for a polish to get that blemish off my paintwork Rebecca?
I don't own a DA.
I'd recommend Poorboys SSR1, or Meguiars 205. Both quite fine compounds with fine abrasives. If a slightly more abrasive compound is required the SSR2 or Meguiars 105. It looks like quite minor marring so start with a the least abrasive polish, on a foam applicator (if by hand) or on a finishing or very light cut pad (if by DA).
Will you be polishing by hand Kalimon? Although these polishes are optimised for a DA, they can be used by hand too to great effect. I've polished many a bird poo mark out with SSR1 or SSR2 by hand. Common sense but start with a clean car, paintwork must be very clean before polishing. If by hand:
By hand: Apply with a foam applicator and work gently in to the paintwork
Wipe off with a microfibre, check the progress using an LED torch (smartphone one will do for small areas) If necessary go over again with a bit of fresh polish until the marring is gone
Wipe off all polish residue
Apply your preferred protection (wax, sealant) to the area
If using a DA: Start with light cutting compound as above, on a black finishing pad
If that's not enough move to a light cutting pad
Wipe off residue to check progress as before
Repeat polishing if needed
Refine down with a black pad
Wipe off residue
Protect as before