This is my sister's 2014 Accord. She rarely takes care of it since she is so busy with her job. She recently came home and the car was piled with bird poop. After cleaning the hood one section left a visible mark. What exactly is it and is there any hopes of it coming off? I am so sad right now because the car was brand new and she did not appreciate it. I have already ordered Meguiar's ultimate compound, polish and liquid wax. Any input is greatly appreciated.

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