Bird Poop That Doesn't Come Off

Bird Poop That Doesn't Come Off - General Mechanical Advice

So I had some big bird poops on my car. The kind where you watch the bird drop it and you say some not so nice things to the bird. And I was like hey, I should get those off before it eats my paint. Looks like it’s too late for that. I can’t tell if this is just residue left from the poop or if the paint needs to be buffed out right there. There are several other places where this has happened, including on the hood. Thoughts would be appreciated. (I have tried every cleaning product in my arsenal, from car soap to Windex).